A non-custodial wallet built on BDK and field-tested daily on testnet — part of the stack you buy and re-skin. Android is live now; iOS and desktop are part of a full build. The coins it holds run on testnet and have no monetary value.
Non-custodial
keys on device
Hardened
Argon2id · FLAG_SECURE
Field-tested
used daily on testnet
Re-skinnable
source included
TOTAL BALANCE · TESTNET
1,240.00
testnet · no monetary value
Builds
The reference wallet runs on Android today — a real, signed, field-tested build. iOS and desktop are commissioned as part of a full stack and re-skinned in the buyer's brand.
.apk · 37 MB · v0.1.0 release
The real reference wallet, built on BDK and field-tested daily on the regtest network. Side-load the signed APK and verify its SHA-256 against the published checksum.
verify checksum / signature
Part of a full build
Native build planned as part of the full stack. A buyer commissioning the iOS app gets it re-skinned in their brand.
verify checksum / signature
Part of a full build
Desktop build planned as part of the full stack. Same seed format, same code, re-skinnable on handover.
verify checksum / signature
Part of a full build
Desktop build planned as part of the full stack. Universal binary, same code, re-skinnable on handover.
verify checksum / signature
The download here is the testnet demo build — try the whole wallet yourself, on real Bitcoin testnet, with free coins that have no monetary value. Take the 4-step demo →
What it does
No backdoor recovery email. No 'forgot my password' button. Non-custodial by design — the security model a buyer inherits, not a service we run.
CUSTODY
Seed phrase is generated on-device using the system hardware RNG. No server-side copy — the wallet is non-custodial by design, the model a buyer would inherit.
MULTI-COIN
GCC plus the pool coins — addresses derived from the same BIP-39 seed using standard paths. All testnet in the demo; coins carry no monetary value.
HARDENED
PIN stretched with Argon2id, optional biometric unlock, FLAG_SECURE to block screenshots, encrypted seed at rest. Real security engineering, not a mockup.
NETWORK
The wallet talks to an Electrum server you control. In the demo it is bridged to the regtest node; a buyer points it at their own chain on launch.
RECOVERY
Standard BIP-39 seeds with optional passphrase ('25th word'). Restore-from-seed works across reinstalls — tested, not theoretical.
HANDOVER
The buyer receives the wallet source as part of the stack, to re-skin and rebuild under their own brand and signing key.
Security · read this
These rules feel obvious until they don't. They're the discipline a buyer's future users will need — and the reason a non-custodial design has to be built carefully. The demo coins have no monetary value, but the model is the real thing.
We can't recover lost seeds. No-one can.
If you contact "GetCryptoCoin Support" and they ask for your seed, it isn't us — it's a scam. We will never message you first, never DM, never need your phrase to "help".
Backup & recovery
Get this right at the start and you'll never have to think about it again.
Every path in this wallet has been walked, not just documented. We restored a wallet from its 24-word phrase with 75 testnet coins intact. We verified send and receive between separate devices, and funded wallets directly from the public faucet. End-to-end, before it ships — the stack you buy is the stack we run.
On first launch, the wallet generates 24 random words using your device's hardware RNG. No network involved.
Write the 24 words down in order on the recovery card. Pen and paper — not a phone, not a screenshot.
Wallet asks you to re-enter three random words to prove you wrote them down correctly.
Put the card somewhere only you can reach. Steel plates and a fireproof safe are the gold standard for larger holdings.
Verify your download
The release APK is signed with the production keystore and its SHA-256 is published. Check the hash of what you downloaded against the published checksum before you install.
Most users won't bother. The point isn't that everyone does it — the point is that anyone can, and a buyer inherits a build they can stand behind.
The wallet is real engineering, not a screen mockup: Argon2id-stretched PIN, biometric unlock, FLAG_SECURE, encrypted seed at rest, restore-from-seed tested across reinstalls. The buyer receives the source to re-skin and rebuild under their own brand and signing key.
SECURITY ENGINEERING