← All apps

Anonomi Postbox

Name: Anonomi Postbox
Author: Anonomi

Anonomi

Self-hosted relay that holds Anonomi messages until you are back online

System & tools
FOSS
Free
No ads
No tracking

Android only

Get Anonomi Postbox

Get it on F-Droid Get it on GitHub Get it on Zapstore

What are these stores? F-Droid, GitHub, Zapstore

Anonomi Postbox solves a real constraint of peer-to-peer messaging without reintroducing centralized control. Anonomi messages are exchanged directly between contacts. There are no servers, no accounts, no global infrastructure. That model maximizes privacy, but it also means delivery depends on both people being online at the same time. In hostile, mobile, or unstable environments, that assumption does not hold.

Developer: Anonomi
Website: anonomi.org
Source code: github.com/anonomi-org/anonomi-postbox
Added to AppCosmos: 9 October 2026
License: AGPL-3.0-or-later