Tyr

about

description

Tyr is a revolutionary Android application that provides true peer-to-peer email communication using the Yggdrasil mesh network. Unlike traditional email systems that rely on centralized servers, Tyr runs a complete email server directly on your device. <b>Key Features:</b> • <b>True P2P Email</b> - No central servers, no cloud infrastructure. Your device IS the email server. • <b>Built-in Tyr Chat</b> - Native P2P messenger built directly into the app. No third-party client required. Send messages and photos over Yggdrasil instantly. • <b>Yggdrasil Integration</b> - Built on the Yggdrasil overlay mesh network providing secure, end-to-end encrypted connections. • <b>Standard Protocols</b> - Exposes SMTP/IMAP protocols on localhost, compatible with standard email clients like DeltaChat. • <b>Privacy First</b> - All data stays on your device. Encrypted configuration backup with AES-256-GCM encryption. • <b>DeltaChat Ready</b> - Seamless integration with DeltaChat for instant messaging over email. • <b>Cryptographic Identity</b> - Your email address is derived from your Ed25519 public key, ensuring authenticity. • <b>Mesh Networking</b> - Connect via public Yggdrasil peers or configure your own custom peers. • <b>Battery Optimized</b> - Sophisticated power management with timed wake locks and network monitoring. • <b>Secure by Design</b> - Password protection using Android Keystore with EncryptedSharedPreferences. • <b>Backup & Restore</b> - Export and import all settings with optional inclusion of your cryptographic keys. <b>Technical Details:</b> The app runs a foreground service that manages the native Yggmail library (Go-based), providing SMTP on port 1025 and IMAP on port 1143 (localhost only). Your mail address format is: &lt;64-hex-characters&gt;@yggmail, cryptographically derived from your Ed25519 key pair. <b>Perfect For:</b> • Privacy enthusiasts who want control over their communications • Users seeking decentralized alternatives to traditional email • DeltaChat users wanting P2P messaging infrastructure • Anyone interested in mesh networking technology <b>Requirements:</b> • Android 6.0 (API 23) or higher • Internet connection for initial Yggdrasil peer connections • Battery optimization exemption recommended for best performance Join the peer-to-peer email revolution with Tyr.

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-10-08T01:19:15.223356+00:00

last event

2026-10-08 01:18 UTC

install

zapstore.dev or any Zapstore-compatible client

source & build

repository

https://github.com/jb-selfcompany/tyr

arch flags

android-arm64-v8a

manifest

not fetched yet

releases (kind 30063)

1 release indexed; latest 1.8.1.

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

1.8.1 — Tyr-1.8.1-arm64-v8a.apk

sha256

c3f2c48b8576b4d91f268ce886db3af383da488f494f80abbcae08b1106300d3

size

12.6 MB

archs

android-arm64-v8a

version code

28

apk cert sha256

5bae87767727de3d39600125f6263e515a6987f1faa972527598a9b1fda4f69e

download

Tyr-1.8.1-arm64-v8a.apk

Showing the newest 1 asset descriptor; the full set is in /api/apps/78ce6faa…