Stack Duo by Cypher Stack2.4.2 - App Store

Stack Duo is a fully open source cryptocurrency wallet. It's a stripped down version of Stack Wallet that only has Bitcoin and Monero. With an easy to use user interface and quick and speedy transactions, this wallet is ideal for anyone no matter how much they know about the cryptocurrency space. The app is actively maintained to provide new user friendly features.

Highlights include:

Bitcoin and Monero included
All private keys and seeds stay on device and are never shared.
Easy backup and restore feature to save all the information that's important to you.
Custom address book
Favorite wallets with fast syncing
Custom Nodes.
Open source software.

Version History sign/verify message
replace mobile qr code scanner with older lib that does not use mlkit
basic sign/verify message
bitcoin enable legacy address toggle
mobile app privacy options
mobile app splash screen respects system light/dark modes
monero was changed to maybe alleviate some freezing issues
electrumx coins addresses generated optimizations
various other bug fixes 2.4.2 11/27/2025 Fixed Tor bug that caused app to freeze 2.4.1 11/06/2025 Bumped Flutter version
Frost fixes
QR code scan feature
Removed unnecessary libs 1.3.0 10/24/2025 Fix Frost error
SWB fixes
Show Monero tx private key option
Added Monero churn options
Added ability to set tor/clearnet options for individual nodes
Paynym temporarily disabled while kinks worked out
View-only wallets 1.2.4 12/05/2024 Added XMR coin control
Updated Frost things
Updated to latest Flutter 1.2.3 10/07/2024 Show n/x confirms while unconfirmed
Show n confirmations on tx details screen
Ignore verification of mnemonic passphrase if passphrase is empty
Added multi address functionality to FROST
Added xpub functionality
XMR/WOW node connection test fixes
Fixed bug where you could not connect to external nodes
Fixed bug where Send From Stack when swapping wouldn't work sometimes
Fixed PayNym bug where sending failed 1.2.2 08/05/2024 Tor support for XMR
.onion support for BTC and XMR
Added RBF and CPfP to Bitcoin 1.2.0 07/01/2024 Updated to latest Stack Wallet version
Tor for Bitcoin (not Monero yet)
Taproot support
Bitcoin Frost
Many many many bug fixes, optimizations, and UI updates 1.1.0 05/25/2024 Upgrade to Dart 3
Added custom fee sends
Enable unit display in sats and other denominations
Added separators for amounts
Theme updates
Fix Monero causing crashes on iOS
Price fetching fixes
Lots of under-the-hood cleanup 1.0.9 07/06/2023 Added custom PIN length
Changed how we handled connections to nodes under the hood (changed to sockets from pinging)
Updated Monero to v0.18.2.2
Default to 12 word seeds for new wallets
Themes v2. Now you can update them when we make changes 1.0.7 05/30/2023 THEMES REDONE! Now only light/dark ship with the app, others downloadable in Settings > Appearance > Add more themes
Added custom block explorers
Move address book to isar
Randomize PIN pad added
Semantic wording for accessibility 1.0.6 05/17/2023 PayNym fixes (may require a rescan)
UI/UX and animation updates
Changed how we handle amounts under the hood 1.0.5 04/29/2023 Mnemonic passphrase now taken into account with backup
Tag color fixes
Orange theme addition
Address labeling 1.0.4 04/04/2023 1.0.2 03/29/2023