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Briar

code.briarproject.org

Install Briar

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 Briar in Zapstore

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

Unclaimed app

The catalog lists Briar from code.briarproject.org and signs its releases. The developer has not claimed it. The file is still checked before you install it.

Are you the developer? Cryptographically prove you hold the key that signs it.

How trust works

Peer-to-peer messaging app that syncs directly between devices without a central server. It uses Bluetooth, Wi-Fi, or memory cards when offline, and Tor for online communication to protect against surveillance.

Briar is a messaging app designed for activists, journalists, and anyone else who needs a safe, easy and robust way to communicate.

Unlike traditional messaging apps, Briar doesn't rely on a central server - messages are synchronized directly between the users' devices.

If the Internet's down, Briar can sync via Bluetooth or Wi-Fi, keeping the information flowing in a crisis. If the Internet's up, Briar can sync via the Tor network, protecting users and their relationships from surveillance.

You can link Briar with a device running Briar Mailbox (even on Android: https://f-droid.org/packages/org.briarproject.mailbox/) to receive encrypted messages from your contacts while Briar is offline.

Summary generated by Zapstore from source.

Original description, as the developer published it.

Zap Briar

Zapping anonymously. Sign in to zap with your identity.

No developer has verified this app yet, so sats go to npub1gnwq4…thdn3y, the catalog that brought it to you.

Amount in sats

Stacked in

Latest release

Oct 30, 2026

Unclaimed app No Google servicesSource available · GPL-3.0-or-later

The catalog lists this app from code.briarproject.org and signs its releases. The developer has not claimed it. Are you the developer? Claim your app

Camera access has no shown use.

Permissions

Fine locationNearby devicesCameraNotificationsAlways runningFiles What they allow
  • Fine location ACCESS_FINE_LOCATION See your precise location Checks if location services are enabled for Bluetooth and Wi-Fi syncing.
  • Nearby devices BLUETOOTH_CONNECT Find and connect to devices around you
  • Camera CAMERA Take photos and record video Has no shown use.
  • Notifications POST_NOTIFICATIONS Send you notifications
  • Always running REQUEST_IGNORE_BATTERY_OPTIMIZATIONS Keep running in the background without limits
  • Files WRITE_EXTERNAL_STORAGE Read files on this phone

Location access is only checked to enable Bluetooth and Wi-Fi syncing.

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Get Briar 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