What2Pack
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Trailsign for Android

Your unit, on Android.

The same Trailsign as on iPhone: your units and events, sign-ups and packing lists, the cookbook with menus and grocery lists, advancement sign-offs, troop gear, and every trip you’re on with its schedule, duty roster, tents, rides and offline maps, all working with no signal.

Version 2.1 · 24 MB · Android 8.0 or newer · released November 6, 2026

How to install

  1. Open this page on your Android phone. Tap Download. Your browser may warn that this kind of file can be harmful. That warning appears for every app that does not come from a store. Choose Download anyway.
  2. Open the file. Tap the download notification, or find the file in your Files app under Downloads.
  3. Allow the install, once. Android asks whether your browser may install apps. Tap Settings, switch on Allow from this source, then go back and tap Install. You can switch it off again afterwards.
  4. Sign in. Open Trailsign, enter the email on your unit’s roster (yours or a parent’s) and tap the link we send. It lists every trip you are on.

Updating? Download the new version and install it over the one you have. Your trips and sign-in stay put.

Why isn’t this on Google Play?

Trailsign for Android is published here, by us. Every release is signed with the Trailsign key below, and Android will only install an update that carries the same signature.

File SHA-256

B8743C52 685AF35B 3D9CC5BA E86C2682 53006286 CBF3B507 41854413 A7E70E5D

Signing certificate SHA-256

ECB3A52E 306F1CE6 3FD11ED2 A8D54A5E 2A1E5E2D 1CC270B3 67638394 AF13FF64