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Shrapnel

Install Shrapnel

Download Zapstore

Download
QR code for zapstore.dev/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 Shrapnel in Zapstore

Open
QR code to open Shrapnel in Zapstore
  • Scan the code to open Shrapnel 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

Claimed by the developer

Pete Winn cryptographically proved they hold the key that signs Shrapnel. The claim is a signed proof on Nostr, tied to the certificate below.

Developer
Pete Winn
Developer key
npub1jss47s4fvv6usl7tn6yp5zamv2u60923ncgfea0e6thkza5p7c3q0afmzy
Signing certificate
b74516220759975c37c9695358b7784647c9575275f0b70371315b69b4cc3e3c
APK checked by
relay.zapstore.devIt read the APK and found it signed with this certificate before listing the release.
Claim published
Nov 12, 2026
Valid until
Nov 12, 2027
Proof event
143f8af2ee8b092467f0e5c8ead3e0fc2f4e592a2b12de8be0fa3a64360f26d8in relay.zapstore.dev
How trust works

A Cashu ecash and Lightning wallet for Android and web, powered by Coco. Sign in with your Nostr identity using Amber on Android, a browser extension on web, or an imported key. Wallet contents are encrypted on your device before syncing to Nstack.

A Cashu ecash and Lightning wallet for Android and web, powered by Coco. Sign in with your Nostr identity using Amber on Android, a browser extension on web, or an imported key. Wallet contents are encrypted on your device before syncing to Nstack. Discover mints through Nostr, with Mineracks and Minibits quick picks. Early release: physical Amber approval and real-mint payments remain unverified. Website: https://safe-bay-cave.rick.runwingman.com . Source repository is private.

Summary generated by Zapstore from source.

Original description, as the developer published it.

Zap Shrapnel

Zapping anonymously. Sign in to zap with your identity.

Sats go to npub1jss47…0afmzy, the developer who signed the app’s certificate proof.

Amount in sats

Latest release

Nov 12, 2026

Claimed app No Google servicesNo source

It asks for no sensitive access.

Release notes

Shrapnel 0.1.6, build 7: TEST RELEASE for receiving over a Lightning address. Open Receive, then Address, and register an alias (for example pw21); other wallets can then pay alias@real-elm-knob.rick.runwingman.com. This points at a TEMPORARY test service whose domain will change, limited to 1 to 10 sats per payment. Real payments have NOT yet been validated end to end: please test with a de minimis amount only. Incoming payments are locked to keys derived from your wallet seed and held in the gateway journal as encrypted receipts; the wallet claims them and the gateway never holds proofs or spending keys. Wallet keys and address registration are stored in your client-encrypted Nstack wallet. Older Shrapnel versions fail closed when an address is registered, so update every device before registering. Existing wallet identity, proofs and the durable Android certificate are preserved.

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Get Shrapnel the private way

Updates checked on your device, and every release verified before it installs.

Get Zapstore for Android

  1. Tap Download APK below.Scan the code with your Android phone’s camera.
  2. If Android asks, allow your browser to install unknown apps.
  3. Open Zapstore and finish the onboarding.
Download APK

v2.0.4 · 71.2 MB · Android 10+

Verify the download

On a computer, run shasum -a 256 <the file you downloaded>. It should print: b13e01319fecf0b3ba1fd60132758bd0fa08a235836c52d44fddb412cf1b7137

If you have zsp, Zapstore’s publishing tool, zsp utils extract-apk <the file you downloaded> works too. Its hash should be the same SHA-256: b13e01319fecf0b3ba1fd60132758bd0fa08a235836c52d44fddb412cf1b7137

On the phone, AppVerifier should show this signing certificate: 99e33b0c2d07e75fcd9df7e40e886646ff667e3aa6648e1a1160b036cf2b9320

Source code All releases and notes

Get zsp

  1. Download the file for your computer.
  2. Make it executable and put it on your PATH.
  3. In your project folder, run zsp.

Have Go? This does the same:

go install github.com/zapstore/zsp/v2/cmd/zsp@latest
macOS, Apple silicon Linux, x86-64 Linux, arm64

v2.0.1 · macOS and Linux

Verify the download

On your computer, run shasum -a 256 <the file you downloaded>. It should print the SHA-256 for the one you chose.

macOS, Apple silicon · 18.6 MB 99018fb9744e5ace2b44557550dc333496239912c0e9b1137266d4922c803346

Linux, x86-64 · 23.8 MB 1ef5373f8ecd9ba63d2c3fab98abb0d31b2244a2aac31b3749fb205c7d5f5b38

Linux, arm64 · 22.1 MB e421005ee47cba58293dce4277bb784e4cfe706dbbcb8617d671629d0238be18

Source code All releases and notes