M2 for Android

Private messaging without a phone number.

M2 gives a small team a secure Channel for messages and files—without sign-up, email addresses, or a shared contact list. Communication is encrypted on the device and routed through Tor.

Android 13 or later · M2 0.6.3

M2 Files screen showing encrypted file storage and an Add file action
Actual M2 0.6.3 interface on Android
Messages, voice and files in one private Channel.

The Channel model

A separate Channel for each team.

Create a Channel for one project or group. Share a private invitation with the people who need it, and keep that conversation separate from personal accounts and everyday messaging.

M2 settings showing language, message preview and passcode controls
Actual M2 0.6.3 interface on Android
Compact M2 Files voice-message player with playback controls
Actual M2 0.6.3 interface on Android
01

No account to create

Join a Channel without registering a phone number or email address.

02

Encrypted on your device

Messages and supported files are protected before they leave your phone.

03

Routed through Tor

Messaging reaches M2 through a v3 Onion Service instead of a direct connection to the messaging gateway.

04

Removed after delivery

Encrypted server copies are deleted after confirmed delivery. Undelivered copies expire within 48 hours.

How it works

Start a Channel. Keep the work separate.

  1. 1

    Create a Channel

    Choose a capacity and a useful lifetime for one team or task.

  2. 2

    Share an invitation

    Send the private invitation only to the people who should join.

  3. 3

    Communicate privately

    Exchange messages, voice notes and supported files inside the Channel.

  4. 4

    Close it when the work ends

    Let the Channel expire, reactivate it when appropriate, or delete it.

M2 security

Security is more than encryption.

M2 combines accountless participation, device-level encryption, Tor routing, signed software updates, and limited server retention. The Security page explains what each control does—and what it does not protect against.

Read the security model

Current signed release

Download M2 for Android.

M2 0.6.3 · Build 2041 · Android 13 or later