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PosterChan

Name: PosterChan
Author: loblawbob873-svg

loblawbob873-svg

A Nostr-powered personal cloud and self-hosted AI — notes, calendar, contacts, files, passwords

Productivity
FOSS
Free
Nostr

Android only

Get PosterChan

Get it on Zapstore Get it on GitHub

What are these stores? Zapstore, GitHub

PosterChan is the Android half of a Nostr-powered personal cloud and a self-hosted AI powerhouse that runs on hardware you own. Your notes, calendar, contacts, files, passwords and mail live as encrypted Nostr events on a relay you run — no account with anybody, no subscription, no vendor holding the keys.

Developer: loblawbob873-svg
Website: poster.place
Source code: github.com/loblawbob873-svg/posterchanai
Added to AppCosmos: 10 October 2026
License: GPL-3.0-or-later