Install Trikey FOSS
Download Zapstore
Download
- Scan the code with your phone’s camera
- Tap Download anyway if the browser warns about the file
- Allow your browser to install unknown apps if Android asks
- Open Zapstore and finish the onboarding
Open Trikey FOSS in Zapstore
Open
- Scan the code to open Trikey FOSS in Zapstore, or search for it there
- Tap Install, and Download if Zapstore asks you to confirm the developer
- Confirm in Android’s install dialog. Allow Zapstore to install unknown apps if Android asks
2-of-3 bitcoin wallet where every key is yours. Everyday payments use only the phone under a daily limit enforced by your own guardian server; bigger payments need your hardware wallet. Includes Delay & Notify recovery that alerts contacts over nostr if you lose the phone.
Trikey FOSS is Trikey built without any Google code, for phones without Google Play services (GrapheneOS, /e/OS, LineageOS) and for anyone who prefers it. QR codes are read with the open source zxing-cpp; the backup is a recovery code plus a backup file, never Google Drive. It is a separate app from the standard Trikey, with its own wallet.
Trikey is a 2-of-3 bitcoin wallet: your hardware wallet (Ledger, Trezor, Coldcard, BitBox, Jade and more), this phone, and the Trikey Guardian on your own Umbrel, Start9 or computer. Everyday payments need only the phone, under a daily limit the guardian enforces. Bigger payments and rule changes need your hardware wallet. Lose the phone and a Delay & Notify recovery gets your money back while your alert contacts are told over nostr.
Used the no-Google Trikey of 0.1.21 or earlier? It was the same app as the standard Trikey; this one starts empty. Restore your wallet here from your backup file and recovery code ("I already have a Trikey wallet").
Made by Icarus Wings, Icarus Wings (icaruswings@trikey.app). Published by Trikey's own npub (trikey@trikey.app), and signed with the same key as the GitHub releases.
Pre-alpha, open source, not audited. Use test networks, or on mainnet only an amount you can afford to lose.
Summary generated by Zapstore from source.
Original description, as the developer published it.
Stacked in
Latest release
Location access and drawing over other apps have no shown use.
Permissions
Coarse locationFine locationNearby devicesCameraFilesOverlay What they allowShow less
- Coarse location ACCESS_COARSE_LOCATION See your approximate location ACCESS_COARSE_LOCATION
- Fine location ACCESS_FINE_LOCATION See your precise location ACCESS_FINE_LOCATION
- Nearby devices BLUETOOTH_CONNECT Find and connect to devices around you
- Camera CAMERA Take photos and record video CAMERA
- Files READ_EXTERNAL_STORAGE Read files on this phone
- Overlay SYSTEM_ALERT_WINDOW Draw over other apps SYSTEM_ALERT_WINDOW
Uses the camera to scan QR codes from a hardware wallet.
Release notes
A guardian fix for shutting down, and how releases reach you. Update the guardian, then the app.
- The guardian finishes what it started before it stops. When the guardian stopped (an Umbrel update or restart), an alert still being sent to your contacts, for example about money leaving Savings, could be cut short, and so could a save of its state. Now it waits for both, up to a few seconds (#222).
- Releases are normal GitHub releases now, not pre-releases: Obtainium no longer needs "Include prereleases", and Zapstore should pick each release up by itself. The version still says "alpha", and Trikey is still pre-alpha and not audited. After each release a check watches Zapstore and opens an issue if an app isn't updated there (#221).
- For testers: docs/testers.md, a one-page start, and a "Hardware wallet test report" issue form; every device but the Ledger is still to be tried on real hardware (#216). The beta checklist records the defaults (a 200,000 sats daily limit suggested, a 7-day delay), Start9 as "build it yourself" and the iPhone built from source for the beta (#215).
- For maintainers:
tools/release/bump.mjsmoves the version everywhere, docs/releasing.md is the runbook, and the changelog uses Keep a Changelog headings so Zapstore gets one release's notes (#217, #218); a flaky test fixed (#220).
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