Madriin SMS for Android

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Version 1.0.0 · released 2026-10-29 · 13.1 MB · Android 5.0 or newer

SHA-256 (to check the file): a16c4826aedf078aa091811ddfc111a6fd7ac15ddded81c371a32370f3463505

Install in 4 steps

1. Download the file on the phone that will send the messages.
2. Open it. If Android says it is blocked, tap Settings and allow installing from your browser or Files app, then go back and tap Install.
3. If Google Play Protect warns about an unrecognised developer, tap More details, then Install anyway. The app is not on the Play Store; it is signed by Madriin.
4. Open Madriin SMS and pair it with Madriin: scan the QR code shown in Madriin, or log in with your Madriin account.

For the administrator (once per phone)

• Keep the phone plugged in, with a SIM that has SMS airtime and internet.
• In the phone's battery settings, set Madriin SMS to Unrestricted or No restrictions so Android does not stop it.
• To lift Android's own limit on messages sent in a short time, connect the phone to a computer with USB debugging on and run this once:

  adb shell pm grant com.madriin.smsgateway android.permission.WRITE_SECURE_SETTINGS