# vitorpamplona/amethyst

Nostr client for Android

Repository: https://github.com/vitorpamplona/amethyst
Canonical: https://ross.abutalabs.com/products/vitorpamplona-amethyst
Homepage: http://amethyst.social
Language: Kotlin
License: MIT
License Family: permissive
Topics: android, kotlin, nostr, social-network
Last push: 2026-08-26T19:21:50+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 99, longevity 95
- inputs: {"age_days": 1330, "days_push": 7, "days_rel": 11, "gap_med": 0, "n_releases_24m": 56}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1590, forks 221 (observed 2026-08-28T04:05:08.564085+00:00)

## What it is
Amethyst is an open-source Nostr client for Android, with recent desktop builds for macOS and Windows, for participating in the decentralized Nostr social network. It lets users post, follow feeds, send private messages, and zap (tip) other users while controlling their own identity and relays.

## Use cases
- nostr client for android
- decentralized social media app
- post and read notes on nostr
- send zaps to nostr users
- private messaging over nostr
- self-custodied social network app

## When to choose
- you want a full-featured, actively maintained Nostr client on Android
- you value open source (MIT) and self-controlled identity on a decentralized protocol
- you want zaps, private messages, and multiple account support in one app

## When to avoid
- you need an iOS client - Amethyst targets Android and desktop
- you want a mainstream centralized social network like Twitter/X or Mastodon's ActivityPub
- you need a Nostr library or SDK rather than a ready-to-use app (though the Quartz library exists separately)

## Facets
- artifact type: application
- maturity: active
- function: chat-interface, gui
- domain: social-media, messaging-platforms, privacy, censorship-circumvention, cross-platform
- platform: cross-platform, jvm
- tags: nostr, social-network-client, decentralized-social, jetpack-compose, microblogging, zap-payments, android, desktop

## Member repositories
- vitorpamplona/amethyst (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:08.564085+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:54:49.026514+00:00, confidence not recorded.
  - readme: https://github.com/vitorpamplona/amethyst (fetched 2026-08-28T04:05:08.564085+00:00, sha 2c9d0419a368)
  - homepage: http://amethyst.social (fetched 2026-08-29T11:25:27.071244+00:00, sha add19e3799e4)
- Data as of 2026-08-30T08:39:29.467469+00:00.