diff --git a/lib/pages/add_wallet_views/add_wallet_view/add_wallet_view.dart b/lib/pages/add_wallet_views/add_wallet_view/add_wallet_view.dart
index 57f707700..deb38a648 100644
--- a/lib/pages/add_wallet_views/add_wallet_view/add_wallet_view.dart
+++ b/lib/pages/add_wallet_views/add_wallet_view/add_wallet_view.dart
@@ -63,7 +63,7 @@ class _AddWalletViewState extends ConsumerState<AddWalletView> {
   String _searchTerm = "";
 
   final _coinsTestnet = [
-    ...AppConfig.coins.where((e) => e.network == CryptoCurrencyNetwork.test),
+    ...AppConfig.coins.where((e) => e.network.isTestNet),
   ];
   final _coins = [
     ...AppConfig.coins.where((e) => e.network == CryptoCurrencyNetwork.main),
diff --git a/lib/pages/address_book_views/address_book_view.dart b/lib/pages/address_book_views/address_book_view.dart
index dc5cc6f99..852803f6f 100644
--- a/lib/pages/address_book_views/address_book_view.dart
+++ b/lib/pages/address_book_views/address_book_view.dart
@@ -11,11 +11,10 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:flutter_svg/svg.dart';
+
 import '../../app_config.dart';
 import '../../models/isar/models/blockchain_data/address.dart';
 import '../../models/isar/models/contact_entry.dart';
-import 'subviews/add_address_book_entry_view.dart';
-import 'subviews/address_book_filter_view.dart';
 import '../../providers/db/main_db_provider.dart';
 import '../../providers/global/address_book_service_provider.dart';
 import '../../providers/providers.dart';
@@ -35,6 +34,8 @@ import '../../widgets/icon_widgets/x_icon.dart';
 import '../../widgets/rounded_white_container.dart';
 import '../../widgets/stack_text_field.dart';
 import '../../widgets/textfield_icon_button.dart';
+import 'subviews/add_address_book_entry_view.dart';
+import 'subviews/address_book_filter_view.dart';
 
 class AddressBookView extends ConsumerStatefulWidget {
   const AddressBookView({
@@ -67,7 +68,7 @@ class _AddressBookViewState extends ConsumerState<AddressBookView> {
     if (widget.coin == null) {
       final coins = [...AppConfig.coins];
       coins.removeWhere(
-        (e) => e is Firo && e.network == CryptoCurrencyNetwork.test,
+        (e) => e is Firo && e.network.isTestNet,
       );
 
       final bool showTestNet =
diff --git a/lib/pages/address_book_views/subviews/address_book_filter_view.dart b/lib/pages/address_book_views/subviews/address_book_filter_view.dart
index 124cf142f..9feaa0a37 100644
--- a/lib/pages/address_book_views/subviews/address_book_filter_view.dart
+++ b/lib/pages/address_book_views/subviews/address_book_filter_view.dart
@@ -43,7 +43,7 @@ class _AddressBookFilterViewState extends ConsumerState<AddressBookFilterView> {
   void initState() {
     final coins = [...AppConfig.coins];
     coins.removeWhere(
-      (e) => e is Firo && e.network == CryptoCurrencyNetwork.test,
+      (e) => e is Firo && e.network.isTestNet,
     );
 
     final showTestNet = ref.read(prefsChangeNotifierProvider).showTestNetCoins;
diff --git a/lib/pages/address_book_views/subviews/coin_select_sheet.dart b/lib/pages/address_book_views/subviews/coin_select_sheet.dart
index 7e2cd0710..64cc5124d 100644
--- a/lib/pages/address_book_views/subviews/coin_select_sheet.dart
+++ b/lib/pages/address_book_views/subviews/coin_select_sheet.dart
@@ -13,8 +13,9 @@ import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:flutter_svg/svg.dart';
-import '../../../providers/global/prefs_provider.dart';
+
 import '../../../app_config.dart';
+import '../../../providers/global/prefs_provider.dart';
 import '../../../themes/coin_image_provider.dart';
 import '../../../themes/stack_colors.dart';
 import '../../../utilities/constants.dart';
@@ -29,7 +30,7 @@ class CoinSelectSheet extends StatelessWidget {
     final maxHeight = MediaQuery.of(context).size.height * 0.60;
     final coins_ = [...AppConfig.coins];
     coins_.removeWhere(
-      (e) => e is Firo && e.network == CryptoCurrencyNetwork.test,
+      (e) => e is Firo && e.network.isTestNet,
     );
     return Container(
       decoration: BoxDecoration(
diff --git a/lib/pages/address_book_views/subviews/new_contact_address_entry_form.dart b/lib/pages/address_book_views/subviews/new_contact_address_entry_form.dart
index fc4c8f900..2bad87bc6 100644
--- a/lib/pages/address_book_views/subviews/new_contact_address_entry_form.dart
+++ b/lib/pages/address_book_views/subviews/new_contact_address_entry_form.dart
@@ -15,11 +15,11 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:flutter_svg/svg.dart';
-import 'coin_select_sheet.dart';
+
+import '../../../app_config.dart';
 import '../../../providers/providers.dart';
 // import 'package:stackwallet/providers/global/should_show_lockscreen_on_resume_state_provider.dart';
 import '../../../providers/ui/address_book_providers/address_entry_data_provider.dart';
-import '../../../app_config.dart';
 import '../../../themes/coin_icon_provider.dart';
 import '../../../themes/stack_colors.dart';
 import '../../../utilities/address_utils.dart';
@@ -36,6 +36,7 @@ import '../../../widgets/icon_widgets/qrcode_icon.dart';
 import '../../../widgets/icon_widgets/x_icon.dart';
 import '../../../widgets/stack_text_field.dart';
 import '../../../widgets/textfield_icon_button.dart';
+import 'coin_select_sheet.dart';
 
 class NewContactAddressEntryForm extends ConsumerStatefulWidget {
   const NewContactAddressEntryForm({
@@ -92,7 +93,7 @@ class _NewContactAddressEntryFormState
     if (isDesktop) {
       coins = [...AppConfig.coins];
       coins.removeWhere(
-        (e) => e is Firo && e.network == CryptoCurrencyNetwork.test,
+        (e) => e is Firo && e.network.isTestNet,
       );
 
       final showTestNet =
diff --git a/lib/pages/send_view/send_view.dart b/lib/pages/send_view/send_view.dart
index 8d1f12c5d..c64ce53f3 100644
--- a/lib/pages/send_view/send_view.dart
+++ b/lib/pages/send_view/send_view.dart
@@ -392,8 +392,7 @@ class _SendViewState extends ConsumerState<SendView> {
         ref.read(pValidSparkSendToAddress.notifier).state =
             SparkInterface.validateSparkAddress(
           address: address ?? "",
-          isTestNet:
-              wallet.cryptoCurrency.network == CryptoCurrencyNetwork.test,
+          isTestNet: wallet.cryptoCurrency.network.isTestNet,
         );
       }
 
diff --git a/lib/pages/settings_views/global_settings_view/manage_nodes_views/manage_nodes_view.dart b/lib/pages/settings_views/global_settings_view/manage_nodes_views/manage_nodes_view.dart
index 34b37b621..e44d352f4 100644
--- a/lib/pages/settings_views/global_settings_view/manage_nodes_views/manage_nodes_view.dart
+++ b/lib/pages/settings_views/global_settings_view/manage_nodes_views/manage_nodes_view.dart
@@ -44,7 +44,7 @@ class _ManageNodesViewState extends ConsumerState<ManageNodesView> {
   void initState() {
     _coins = _coins.toList();
     _coins.removeWhere(
-      (e) => e is Firo && e.network == CryptoCurrencyNetwork.test,
+      (e) => e is Firo && e.network.isTestNet,
     );
     super.initState();
   }
diff --git a/lib/pages/wallet_view/wallet_view.dart b/lib/pages/wallet_view/wallet_view.dart
index e4bc2a755..bfe2cb8c5 100644
--- a/lib/pages/wallet_view/wallet_view.dart
+++ b/lib/pages/wallet_view/wallet_view.dart
@@ -377,7 +377,7 @@ class _WalletViewState extends ConsumerState<WalletView> {
   Future<void> _onExchangePressed(BuildContext context) async {
     final CryptoCurrency coin = ref.read(pWalletCoin(walletId));
 
-    if (coin.network == CryptoCurrencyNetwork.test) {
+    if (coin.network.isTestNet) {
       await showDialog<void>(
         context: context,
         builder: (_) => const StackOkDialog(
@@ -423,7 +423,7 @@ class _WalletViewState extends ConsumerState<WalletView> {
   Future<void> _onBuyPressed(BuildContext context) async {
     final CryptoCurrency coin = ref.read(pWalletCoin(walletId));
 
-    if (coin.network == CryptoCurrencyNetwork.test) {
+    if (coin.network.isTestNet) {
       await showDialog<void>(
         context: context,
         builder: (_) => const StackOkDialog(
diff --git a/lib/pages_desktop_specific/address_book_view/desktop_address_book.dart b/lib/pages_desktop_specific/address_book_view/desktop_address_book.dart
index c68b9c058..f27147cb3 100644
--- a/lib/pages_desktop_specific/address_book_view/desktop_address_book.dart
+++ b/lib/pages_desktop_specific/address_book_view/desktop_address_book.dart
@@ -11,13 +11,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:flutter_svg/svg.dart';
+
 import '../../app_config.dart';
 import '../../models/isar/models/blockchain_data/address.dart';
 import '../../models/isar/models/contact_entry.dart';
 import '../../pages/address_book_views/subviews/add_address_book_entry_view.dart';
 import '../../pages/address_book_views/subviews/address_book_filter_view.dart';
-import 'subwidgets/desktop_address_book_scaffold.dart';
-import 'subwidgets/desktop_contact_details.dart';
 import '../../providers/db/main_db_provider.dart';
 import '../../providers/global/address_book_service_provider.dart';
 import '../../providers/providers.dart';
@@ -40,6 +39,8 @@ import '../../widgets/rounded_container.dart';
 import '../../widgets/rounded_white_container.dart';
 import '../../widgets/stack_text_field.dart';
 import '../../widgets/textfield_icon_button.dart';
+import 'subwidgets/desktop_address_book_scaffold.dart';
+import 'subwidgets/desktop_contact_details.dart';
 
 class DesktopAddressBook extends ConsumerStatefulWidget {
   const DesktopAddressBook({super.key});
@@ -99,7 +100,7 @@ class _DesktopAddressBook extends ConsumerState<DesktopAddressBook> {
     // if (widget.coin == null) {
     final coins = AppConfig.coins.toList();
     coins.removeWhere(
-      (e) => e is Firo && e.network == CryptoCurrencyNetwork.test,
+      (e) => e is Firo && e.network.isTestNet,
     );
 
     final bool showTestNet =
diff --git a/lib/pages_desktop_specific/my_stack_view/wallet_view/sub_widgets/desktop_send.dart b/lib/pages_desktop_specific/my_stack_view/wallet_view/sub_widgets/desktop_send.dart
index 6c7c28296..aa325a653 100644
--- a/lib/pages_desktop_specific/my_stack_view/wallet_view/sub_widgets/desktop_send.dart
+++ b/lib/pages_desktop_specific/my_stack_view/wallet_view/sub_widgets/desktop_send.dart
@@ -704,8 +704,7 @@ class _DesktopSendState extends ConsumerState<DesktopSend> {
         ref.read(pValidSparkSendToAddress.notifier).state =
             SparkInterface.validateSparkAddress(
           address: address ?? "",
-          isTestNet:
-              wallet.cryptoCurrency.network == CryptoCurrencyNetwork.test,
+          isTestNet: wallet.cryptoCurrency.network.isTestNet,
         );
       }
 
@@ -1468,7 +1467,7 @@ class _DesktopSendState extends ConsumerState<DesktopSend> {
                   if (_data != null && _data!.contactLabel == _address) {
                     error = SparkInterface.validateSparkAddress(
                       address: _data!.address,
-                      isTestNet: coin.network == CryptoCurrencyNetwork.test,
+                      isTestNet: coin.network.isTestNet,
                     )
                         ? "Lelantus to Spark not supported"
                         : null;
diff --git a/lib/pages_desktop_specific/settings/settings_menu/nodes_settings.dart b/lib/pages_desktop_specific/settings/settings_menu/nodes_settings.dart
index 517073f4c..bf6914869 100644
--- a/lib/pages_desktop_specific/settings/settings_menu/nodes_settings.dart
+++ b/lib/pages_desktop_specific/settings/settings_menu/nodes_settings.dart
@@ -69,7 +69,7 @@ class _NodesSettings extends ConsumerState<NodesSettings> {
   void initState() {
     _coins = _coins.toList();
     _coins.removeWhere(
-      (e) => e is Firo && e.network == CryptoCurrencyNetwork.test,
+      (e) => e is Firo && e.network.isTestNet,
     );
 
     searchNodeController = TextEditingController();
diff --git a/lib/services/frost.dart b/lib/services/frost.dart
index 932ee61ed..632299e37 100644
--- a/lib/services/frost.dart
+++ b/lib/services/frost.dart
@@ -6,6 +6,7 @@ import 'package:frostdart/frostdart.dart';
 import 'package:frostdart/frostdart_bindings_generated.dart';
 import 'package:frostdart/output.dart';
 import 'package:frostdart/util.dart';
+
 import '../models/isar/models/blockchain_data/utxo.dart';
 import '../utilities/amount/amount.dart';
 import '../utilities/extensions/extensions.dart';
@@ -83,9 +84,8 @@ abstract class Frost {
     required CryptoCurrency coin,
   }) {
     try {
-      final network = coin.network == CryptoCurrencyNetwork.test
-          ? Network.Testnet
-          : Network.Mainnet;
+      final network =
+          coin.network.isTestNet ? Network.Testnet : Network.Mainnet;
       final signConfigPointer = decodedSignConfig(
         encodedConfig: signConfig,
         network: network,
diff --git a/lib/wallets/api/lelantus_ffi_wrapper.dart b/lib/wallets/api/lelantus_ffi_wrapper.dart
index d43f504c4..44e446507 100644
--- a/lib/wallets/api/lelantus_ffi_wrapper.dart
+++ b/lib/wallets/api/lelantus_ffi_wrapper.dart
@@ -11,7 +11,6 @@ import '../../utilities/extensions/impl/string.dart';
 import '../../utilities/extensions/impl/uint8_list.dart';
 import '../../utilities/format.dart';
 import '../../utilities/logger.dart';
-import '../crypto_currency/crypto_currency.dart';
 import '../crypto_currency/intermediate/bip39_hd_currency.dart';
 import '../models/tx_data.dart';
 
@@ -92,7 +91,7 @@ abstract final class LelantusFfiWrapper {
         mintKeyPair.privateKey!.toHex,
         currentIndex,
         mintKeyPair.identifier.toHex,
-        isTestnet: args.cryptoCurrency.network == CryptoCurrencyNetwork.test,
+        isTestnet: args.cryptoCurrency.network.isTestNet,
       );
 
       for (int setId = 1; setId <= args.latestSetId; setId++) {
@@ -117,8 +116,7 @@ abstract final class LelantusFfiWrapper {
               amount,
               mintKeyPair.privateKey!.toHex,
               currentIndex,
-              isTestnet:
-                  args.cryptoCurrency.network == CryptoCurrencyNetwork.test,
+              isTestnet: args.cryptoCurrency.network.isTestNet,
             );
             final bool isUsed = args.usedSerialNumbers.contains(serialNumber);
 
@@ -162,8 +160,7 @@ abstract final class LelantusFfiWrapper {
                 amount,
                 aesPrivateKey,
                 currentIndex,
-                isTestnet:
-                    args.cryptoCurrency.network == CryptoCurrencyNetwork.test,
+                isTestnet: args.cryptoCurrency.network.isTestNet,
               );
               final bool isUsed = args.usedSerialNumbers.contains(serialNumber);
 
@@ -314,7 +311,7 @@ abstract final class LelantusFfiWrapper {
         spendAmount: spendAmount,
         subtractFeeFromAmount: arg.subtractFeeFromAmount,
         lelantusEntries: arg.lelantusEntries,
-        isTestNet: arg.cryptoCurrency.network == CryptoCurrencyNetwork.test,
+        isTestNet: arg.cryptoCurrency.network.isTestNet,
       ),
     );
     final changeToMint = estimateJoinSplitFee.changeToMint;
@@ -364,7 +361,7 @@ abstract final class LelantusFfiWrapper {
       changeToMint,
       jmintprivatekey,
       arg.index,
-      isTestnet: arg.cryptoCurrency.network == CryptoCurrencyNetwork.test,
+      isTestnet: arg.cryptoCurrency.network.isTestNet,
     );
 
     final _derivePath = "${arg.partialDerivationPath}$JMINT_INDEX/$keyPath";
@@ -378,7 +375,7 @@ abstract final class LelantusFfiWrapper {
       arg.index,
       Format.uint8listToString(jmintKeyPair.identifier),
       aesPrivateKey,
-      isTestnet: arg.cryptoCurrency.network == CryptoCurrencyNetwork.test,
+      isTestnet: arg.cryptoCurrency.network.isTestNet,
     );
 
     tx.addOutput(
@@ -434,7 +431,7 @@ abstract final class LelantusFfiWrapper {
       anonymitySets,
       anonymitySetHashes,
       groupBlockHashes,
-      isTestnet: arg.cryptoCurrency.network == CryptoCurrencyNetwork.test,
+      isTestnet: arg.cryptoCurrency.network.isTestNet,
     );
 
     final finalTx = bitcoindart.TransactionBuilder(network: _network);
diff --git a/lib/wallets/crypto_currency/coins/bitcoin.dart b/lib/wallets/crypto_currency/coins/bitcoin.dart
index dd103c794..c303124c3 100644
--- a/lib/wallets/crypto_currency/coins/bitcoin.dart
+++ b/lib/wallets/crypto_currency/coins/bitcoin.dart
@@ -24,6 +24,10 @@ class Bitcoin extends Bip39HDCurrency
         _id = "bitcoinTestNet";
         _name = "tBitcoin";
         _ticker = "tBTC";
+      case CryptoCurrencyNetwork.test4:
+        _id = "bitcoinTestNet4";
+        _name = "t4Bitcoin";
+        _ticker = "t4BTC";
       default:
         throw Exception("Unsupported network: $network");
     }
@@ -71,6 +75,8 @@ class Bitcoin extends Bip39HDCurrency
         return "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f";
       case CryptoCurrencyNetwork.test:
         return "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943";
+      case CryptoCurrencyNetwork.test4:
+        return "00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043";
       default:
         throw Exception("Unsupported network: $network");
     }
@@ -99,6 +105,7 @@ class Bitcoin extends Bip39HDCurrency
           feePerKb: BigInt.from(1), // Not used in stack wallet currently
         );
       case CryptoCurrencyNetwork.test:
+      case CryptoCurrencyNetwork.test4:
         return coinlib.Network(
           wifPrefix: 0xef,
           p2pkhPrefix: 0x6f,
@@ -247,6 +254,19 @@ class Bitcoin extends Bip39HDCurrency
           isDown: false,
         );
 
+      case CryptoCurrencyNetwork.test4:
+        return NodeModel(
+          host: "bitcoin-testnet4.stackwallet.com",
+          port: 50002,
+          name: DefaultNodes.defaultName,
+          id: DefaultNodes.buildId(this),
+          useSSL: true,
+          enabled: true,
+          coinName: identifier,
+          isFailover: true,
+          isDown: false,
+        );
+
       default:
         throw UnimplementedError();
     }
@@ -286,6 +306,8 @@ class Bitcoin extends Bip39HDCurrency
         return Uri.parse("https://mempool.space/tx/$txid");
       case CryptoCurrencyNetwork.test:
         return Uri.parse("https://mempool.space/testnet/tx/$txid");
+      case CryptoCurrencyNetwork.test4:
+        return Uri.parse("https://mempool.space/testnet4/tx/$txid");
       default:
         throw Exception(
           "Unsupported network for defaultBlockExplorer(): $network",
diff --git a/lib/wallets/crypto_currency/coins/bitcoin_frost.dart b/lib/wallets/crypto_currency/coins/bitcoin_frost.dart
index a5f02ac08..c5e0049b7 100644
--- a/lib/wallets/crypto_currency/coins/bitcoin_frost.dart
+++ b/lib/wallets/crypto_currency/coins/bitcoin_frost.dart
@@ -24,6 +24,10 @@ class BitcoinFrost extends FrostCurrency {
         _id = "bitcoinFrostTestNet";
         _name = "tBitcoin Frost";
         _ticker = "tBTC";
+      case CryptoCurrencyNetwork.test4:
+        _id = "bitcoinFrostTestNet4";
+        _name = "t4Bitcoin Frost";
+        _ticker = "t4BTC";
       default:
         throw Exception("Unsupported network: $network");
     }
@@ -84,6 +88,19 @@ class BitcoinFrost extends FrostCurrency {
           isDown: false,
         );
 
+      case CryptoCurrencyNetwork.test4:
+        return NodeModel(
+          host: "bitcoin-testnet4.stackwallet.com",
+          port: 50002,
+          name: DefaultNodes.defaultName,
+          id: DefaultNodes.buildId(this),
+          useSSL: true,
+          enabled: true,
+          coinName: identifier,
+          isFailover: true,
+          isDown: false,
+        );
+
       default:
         throw UnimplementedError();
     }
@@ -96,6 +113,8 @@ class BitcoinFrost extends FrostCurrency {
         return "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f";
       case CryptoCurrencyNetwork.test:
         return "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943";
+      case CryptoCurrencyNetwork.test4:
+        return "00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043";
       default:
         throw Exception("Unsupported network: $network");
     }
@@ -132,6 +151,7 @@ class BitcoinFrost extends FrostCurrency {
           feePerKb: BigInt.from(1), // Not used in stack wallet currently
         );
       case CryptoCurrencyNetwork.test:
+      case CryptoCurrencyNetwork.test4:
         return coinlib.Network(
           wifPrefix: 0xef,
           p2pkhPrefix: 0x6f,
@@ -195,6 +215,8 @@ class BitcoinFrost extends FrostCurrency {
         return Uri.parse("https://mempool.space/tx/$txid");
       case CryptoCurrencyNetwork.test:
         return Uri.parse("https://mempool.space/testnet/tx/$txid");
+      case CryptoCurrencyNetwork.test4:
+        return Uri.parse("https://mempool.space/testnet4/tx/$txid");
       default:
         throw Exception(
           "Unsupported network for defaultBlockExplorer(): $network",
diff --git a/lib/wallets/crypto_currency/coins/bitcoincash.dart b/lib/wallets/crypto_currency/coins/bitcoincash.dart
index e06578ac6..c0014039d 100644
--- a/lib/wallets/crypto_currency/coins/bitcoincash.dart
+++ b/lib/wallets/crypto_currency/coins/bitcoincash.dart
@@ -211,7 +211,7 @@ class Bitcoincash extends Bip39HDCurrency with ElectrumXCurrencyInterface {
       // 0 for bitcoincash: address scheme, 1 for legacy address
       final format = bitbox.Address.detectFormat(address);
 
-      if (network == CryptoCurrencyNetwork.test) {
+      if (network.isTestNet) {
         return true;
       }
 
diff --git a/lib/wallets/crypto_currency/coins/firo.dart b/lib/wallets/crypto_currency/coins/firo.dart
index 47ee606c4..ae73f13b7 100644
--- a/lib/wallets/crypto_currency/coins/firo.dart
+++ b/lib/wallets/crypto_currency/coins/firo.dart
@@ -176,7 +176,7 @@ class Firo extends Bip39HDCurrency with ElectrumXCurrencyInterface {
   bool validateSparkAddress(String address) {
     return SparkInterface.validateSparkAddress(
       address: address,
-      isTestNet: network == CryptoCurrencyNetwork.test,
+      isTestNet: network.isTestNet,
     );
   }
 
diff --git a/lib/wallets/crypto_currency/crypto_currency.dart b/lib/wallets/crypto_currency/crypto_currency.dart
index eb6e88daa..5ea51e557 100644
--- a/lib/wallets/crypto_currency/crypto_currency.dart
+++ b/lib/wallets/crypto_currency/crypto_currency.dart
@@ -25,7 +25,11 @@ export 'coins/wownero.dart';
 enum CryptoCurrencyNetwork {
   main,
   test,
-  stage;
+  stage,
+  test4;
+
+  bool get isTestNet =>
+      this == CryptoCurrencyNetwork.test || this == CryptoCurrencyNetwork.test4;
 }
 
 abstract class CryptoCurrency {
diff --git a/lib/wallets/wallet/wallet_mixin_interfaces/bcash_interface.dart b/lib/wallets/wallet/wallet_mixin_interfaces/bcash_interface.dart
index be0727bfc..0fd65ba0d 100644
--- a/lib/wallets/wallet/wallet_mixin_interfaces/bcash_interface.dart
+++ b/lib/wallets/wallet/wallet_mixin_interfaces/bcash_interface.dart
@@ -8,7 +8,6 @@ import '../../../models/isar/models/blockchain_data/v2/transaction_v2.dart';
 import '../../../models/isar/models/isar_models.dart';
 import '../../../models/signing_data.dart';
 import '../../../utilities/logger.dart';
-import '../../crypto_currency/crypto_currency.dart';
 import '../../crypto_currency/interfaces/electrumx_currency_interface.dart';
 import '../../models/tx_data.dart';
 import '../intermediate/bip39_hd_wallet.dart';
@@ -27,7 +26,7 @@ mixin BCashInterface<T extends ElectrumXCurrencyInterface>
     // TODO: use coinlib
 
     final builder = bitbox.Bitbox.transactionBuilder(
-      testnet: cryptoCurrency.network == CryptoCurrencyNetwork.test,
+      testnet: cryptoCurrency.network.isTestNet,
     );
 
     builder.setVersion(cryptoCurrency.transactionVersion);
@@ -100,7 +99,7 @@ mixin BCashInterface<T extends ElectrumXCurrencyInterface>
           network: bitbox_utils.Network(
             cryptoCurrency.networkParams.privHDPrefix,
             cryptoCurrency.networkParams.pubHDPrefix,
-            cryptoCurrency.network == CryptoCurrencyNetwork.test,
+            cryptoCurrency.network.isTestNet,
             cryptoCurrency.networkParams.p2pkhPrefix,
             cryptoCurrency.networkParams.wifPrefix,
             cryptoCurrency.networkParams.p2pkhPrefix,
diff --git a/lib/wallets/wallet/wallet_mixin_interfaces/lelantus_interface.dart b/lib/wallets/wallet/wallet_mixin_interfaces/lelantus_interface.dart
index 9d536197a..7116f6c7d 100644
--- a/lib/wallets/wallet/wallet_mixin_interfaces/lelantus_interface.dart
+++ b/lib/wallets/wallet/wallet_mixin_interfaces/lelantus_interface.dart
@@ -6,6 +6,8 @@ import 'package:bitcoindart/bitcoindart.dart' as bitcoindart;
 import 'package:decimal/decimal.dart';
 import 'package:isar/isar.dart';
 import 'package:lelantus/lelantus.dart' as lelantus;
+import 'package:tuple/tuple.dart';
+
 import '../../../models/balance.dart';
 import '../../../models/isar/models/isar_models.dart';
 import '../../../models/lelantus_fee_data.dart';
@@ -15,12 +17,10 @@ import '../../../utilities/extensions/impl/uint8_list.dart';
 import '../../../utilities/format.dart';
 import '../../../utilities/logger.dart';
 import '../../api/lelantus_ffi_wrapper.dart';
-import '../../crypto_currency/crypto_currency.dart';
 import '../../crypto_currency/interfaces/electrumx_currency_interface.dart';
 import '../../models/tx_data.dart';
 import '../intermediate/bip39_hd_wallet.dart';
 import 'electrumx_interface.dart';
-import 'package:tuple/tuple.dart';
 
 mixin LelantusInterface<T extends ElectrumXCurrencyInterface>
     on Bip39HDWallet<T>, ElectrumXInterface<T> {
@@ -38,7 +38,7 @@ mixin LelantusInterface<T extends ElectrumXCurrencyInterface>
       spendAmount: amount,
       subtractFeeFromAmount: true,
       lelantusEntries: lelantusEntries,
-      isTestNet: cryptoCurrency.network == CryptoCurrencyNetwork.test,
+      isTestNet: cryptoCurrency.network.isTestNet,
     );
 
     return Amount(
@@ -526,7 +526,7 @@ mixin LelantusInterface<T extends ElectrumXCurrencyInterface>
         int.parse(coin.value),
         mintKeyPair.privateKey.data.toHex,
         coin.mintIndex,
-        isTestnet: cryptoCurrency.network == CryptoCurrencyNetwork.test,
+        isTestnet: cryptoCurrency.network.isTestNet,
       );
       final bool isUsed = usedSerialNumbersSet.contains(serialNumber);
 
@@ -1033,7 +1033,7 @@ mixin LelantusInterface<T extends ElectrumXCurrencyInterface>
         await mainDB.getHighestUsedMintIndex(walletId: walletId);
     final nextFreeMintIndex = (lastUsedIndex ?? 0) + 1;
 
-    final isTestnet = cryptoCurrency.network == CryptoCurrencyNetwork.test;
+    final isTestnet = cryptoCurrency.network.isTestNet;
 
     final root = await getRootHDNode();
 
diff --git a/lib/wallets/wallet/wallet_mixin_interfaces/paynym_interface.dart b/lib/wallets/wallet/wallet_mixin_interfaces/paynym_interface.dart
index 0d9ebf75b..f86e76d0d 100644
--- a/lib/wallets/wallet/wallet_mixin_interfaces/paynym_interface.dart
+++ b/lib/wallets/wallet/wallet_mixin_interfaces/paynym_interface.dart
@@ -68,7 +68,7 @@ mixin PaynymInterface<T extends PaynymCurrencyInterface>
     final root = await _getRootNode();
     final node = root.derivePath(
       _basePaynymDerivePath(
-        testnet: info.coin.network == CryptoCurrencyNetwork.test,
+        testnet: info.coin.network.isTestNet,
       ),
     );
     return node;
@@ -159,7 +159,7 @@ mixin PaynymInterface<T extends PaynymCurrencyInterface>
     final root = await _getRootNode();
     final node = root.derivePath(
       _basePaynymDerivePath(
-        testnet: info.coin.network == CryptoCurrencyNetwork.test,
+        testnet: info.coin.network.isTestNet,
       ),
     );
 
@@ -182,7 +182,7 @@ mixin PaynymInterface<T extends PaynymCurrencyInterface>
       derivationPath: DerivationPath()
         ..value = _receivingPaynymAddressDerivationPath(
           index,
-          testnet: info.coin.network == CryptoCurrencyNetwork.test,
+          testnet: info.coin.network.isTestNet,
         ),
       type: generateSegwitAddress ? AddressType.p2wpkh : AddressType.p2pkh,
       subType: AddressSubType.paynymReceive,
@@ -219,7 +219,7 @@ mixin PaynymInterface<T extends PaynymCurrencyInterface>
       derivationPath: DerivationPath()
         ..value = _sendPaynymAddressDerivationPath(
           index,
-          testnet: info.coin.network == CryptoCurrencyNetwork.test,
+          testnet: info.coin.network.isTestNet,
         ),
       type: AddressType.nonWallet,
       subType: AddressSubType.paynymSend,
@@ -314,7 +314,7 @@ mixin PaynymInterface<T extends PaynymCurrencyInterface>
     final node = root
         .derivePath(
           _basePaynymDerivePath(
-            testnet: info.coin.network == CryptoCurrencyNetwork.test,
+            testnet: info.coin.network.isTestNet,
           ),
         )
         .derive(0);
@@ -330,7 +330,7 @@ mixin PaynymInterface<T extends PaynymCurrencyInterface>
     final paymentCode = PaymentCode.fromBip32Node(
       node.derivePath(
         _basePaynymDerivePath(
-          testnet: info.coin.network == CryptoCurrencyNetwork.test,
+          testnet: info.coin.network.isTestNet,
         ),
       ),
       networkType: networkType,
@@ -1469,7 +1469,7 @@ mixin PaynymInterface<T extends PaynymCurrencyInterface>
       final root = await _getRootNode();
       final node = root.derivePath(
         _basePaynymDerivePath(
-          testnet: info.coin.network == CryptoCurrencyNetwork.test,
+          testnet: info.coin.network.isTestNet,
         ),
       );
       final paymentCode = PaymentCode.fromBip32Node(
@@ -1497,7 +1497,7 @@ mixin PaynymInterface<T extends PaynymCurrencyInterface>
         derivationIndex: 0,
         derivationPath: DerivationPath()
           ..value = _notificationDerivationPath(
-            testnet: info.coin.network == CryptoCurrencyNetwork.test,
+            testnet: info.coin.network.isTestNet,
           ),
         type: AddressType.p2pkh,
         subType: AddressSubType.paynymNotification,
diff --git a/lib/wallets/wallet/wallet_mixin_interfaces/spark_interface.dart b/lib/wallets/wallet/wallet_mixin_interfaces/spark_interface.dart
index 496147da1..90f7cfe31 100644
--- a/lib/wallets/wallet/wallet_mixin_interfaces/spark_interface.dart
+++ b/lib/wallets/wallet/wallet_mixin_interfaces/spark_interface.dart
@@ -18,7 +18,6 @@ import '../../../utilities/amount/amount.dart';
 import '../../../utilities/enums/derive_path_type_enum.dart';
 import '../../../utilities/extensions/extensions.dart';
 import '../../../utilities/logger.dart';
-import '../../crypto_currency/crypto_currency.dart';
 import '../../crypto_currency/interfaces/electrumx_currency_interface.dart';
 import '../../isar/models/spark_coin.dart';
 import '../../isar/models/wallet_info.dart';
@@ -86,7 +85,7 @@ mixin SparkInterface<T extends ElectrumXCurrencyInterface>
       if (_sparkChangeAddressCached == null) {
         final root = await getRootHDNode();
         final String derivationPath;
-        if (cryptoCurrency.network == CryptoCurrencyNetwork.test) {
+        if (cryptoCurrency.network.isTestNet) {
           derivationPath =
               "$kSparkBaseDerivationPathTestnet$kDefaultSparkIndex";
         } else {
@@ -98,7 +97,7 @@ mixin SparkInterface<T extends ElectrumXCurrencyInterface>
           privateKey: keys.privateKey.data,
           index: kDefaultSparkIndex,
           diversifier: kSparkChange,
-          isTestNet: cryptoCurrency.network == CryptoCurrencyNetwork.test,
+          isTestNet: cryptoCurrency.network.isTestNet,
         );
       }
     } catch (e, s) {
@@ -158,7 +157,7 @@ mixin SparkInterface<T extends ElectrumXCurrencyInterface>
 
     final root = await getRootHDNode();
     final String derivationPath;
-    if (cryptoCurrency.network == CryptoCurrencyNetwork.test) {
+    if (cryptoCurrency.network.isTestNet) {
       derivationPath = "$kSparkBaseDerivationPathTestnet$kDefaultSparkIndex";
     } else {
       derivationPath = "$kSparkBaseDerivationPath$kDefaultSparkIndex";
@@ -169,7 +168,7 @@ mixin SparkInterface<T extends ElectrumXCurrencyInterface>
       privateKey: keys.privateKey.data,
       index: kDefaultSparkIndex,
       diversifier: diversifier,
-      isTestNet: cryptoCurrency.network == CryptoCurrencyNetwork.test,
+      isTestNet: cryptoCurrency.network.isTestNet,
     );
 
     return Address(
@@ -335,7 +334,7 @@ mixin SparkInterface<T extends ElectrumXCurrencyInterface>
 
     final root = await getRootHDNode();
     final String derivationPath;
-    if (cryptoCurrency.network == CryptoCurrencyNetwork.test) {
+    if (cryptoCurrency.network.isTestNet) {
       derivationPath = "$kSparkBaseDerivationPathTestnet$kDefaultSparkIndex";
     } else {
       derivationPath = "$kSparkBaseDerivationPath$kDefaultSparkIndex";
@@ -704,7 +703,7 @@ mixin SparkInterface<T extends ElectrumXCurrencyInterface>
             groupId: groupId,
             privateKeyHexSet: privateKeyHexSet,
             walletId: walletId,
-            isTestNet: cryptoCurrency.network == CryptoCurrencyNetwork.test,
+            isTestNet: cryptoCurrency.network.isTestNet,
           ),
         );
 
@@ -836,7 +835,7 @@ mixin SparkInterface<T extends ElectrumXCurrencyInterface>
             groupId: groupId,
             privateKeyHexSet: privateKeyHexSet,
             walletId: walletId,
-            isTestNet: cryptoCurrency.network == CryptoCurrencyNetwork.test,
+            isTestNet: cryptoCurrency.network.isTestNet,
           ),
         );
         newlyIdCoins.addAll(myCoins);
diff --git a/scripts/app_config/configure_stack_duo.sh b/scripts/app_config/configure_stack_duo.sh
index 56c12bd37..7c1b2ff36 100755
--- a/scripts/app_config/configure_stack_duo.sh
+++ b/scripts/app_config/configure_stack_duo.sh
@@ -56,7 +56,9 @@ final List<CryptoCurrency> _supportedCoins = List.unmodifiable([
   Monero(CryptoCurrencyNetwork.main),
   BitcoinFrost(CryptoCurrencyNetwork.main),
   Bitcoin(CryptoCurrencyNetwork.test),
+  Bitcoin(CryptoCurrencyNetwork.test4),
   BitcoinFrost(CryptoCurrencyNetwork.test),
+  BitcoinFrost(CryptoCurrencyNetwork.test4),
 ]);
 
 EOF
\ No newline at end of file
diff --git a/scripts/app_config/configure_stack_wallet.sh b/scripts/app_config/configure_stack_wallet.sh
index 7c0dc2a67..fb2438182 100755
--- a/scripts/app_config/configure_stack_wallet.sh
+++ b/scripts/app_config/configure_stack_wallet.sh
@@ -69,13 +69,15 @@ final List<CryptoCurrency> _supportedCoins = List.unmodifiable([
   Tezos(CryptoCurrencyNetwork.main),
   Wownero(CryptoCurrencyNetwork.main),
   Bitcoin(CryptoCurrencyNetwork.test),
-  BitcoinFrost(CryptoCurrencyNetwork.test),
-  Litecoin(CryptoCurrencyNetwork.test),
+  Bitcoin(CryptoCurrencyNetwork.test4),
   Bitcoincash(CryptoCurrencyNetwork.test),
-  Firo(CryptoCurrencyNetwork.test),
+  BitcoinFrost(CryptoCurrencyNetwork.test),
+  BitcoinFrost(CryptoCurrencyNetwork.test4),
   Dogecoin(CryptoCurrencyNetwork.test),
-  Stellar(CryptoCurrencyNetwork.test),
+  Firo(CryptoCurrencyNetwork.test),
+  Litecoin(CryptoCurrencyNetwork.test),
   Peercoin(CryptoCurrencyNetwork.test),
+  Stellar(CryptoCurrencyNetwork.test),
 ]);
 
 EOF
\ No newline at end of file