TWENTY ONE Companion

about

description

The companion app for the TWENTY ONE Portal on Android: meetups, events, courses, lecturers and places — right in your pocket. - Meetups & events with a region filter - Map of all meetups (OpenStreetMap) - Courses & lecturers - Group chat on Nostr (NIP-29) with Lightning zaps (NIP-57) - Workspaces: a second space next to the community relay, with its own channels - Read the community's longform articles right in the app - Create and manage your own meetups, events, courses, lecturers and places - Join the association in-app: statutes, application and the BTCPay checkout for the annual fee — after paying, activation arrives on its own - Chat notifications without Goolag: your phone checks the relay itself in the background — no Play Services, no second app, no push server in between. Off by default. - Built-in wallet: connect Alby / any NWC wallet, send & receive sats - Amber offline mode: sign on-device via NIP-55, no round-trips - Sign in with Nostr: Amber on-device (NIP-55) or a remote bunker (NIP-46, incl. QR) - Offline-ready: the chat is cached on-device, recently loaded data stays available - 8 languages: German, English, Spanish, Portuguese, Dutch, Polish, Hungarian, Latvian

publisher

0adf67475ccc5ca456fd3022e46f5d526eb0af6284bf85494c0dd7847f3e5033

first seen

2026-09-23T11:04:39.230612+00:00

last event

2026-10-25 13:44 UTC

website

https://portal.einundzwanzig.space

install

zapstore.dev or any Zapstore-compatible client

topics

#bitcoin #community #events #lightning #meetups #nostr

source & build

repository

https://github.com/HolgerHatGarKeineNode/twenty-one-companion

arch flags

android-arm64-v8a

manifest

zapstore.yaml ok checked 2026-10-04T09:09:29.504889+00:00

{
  "icon": "./public/icon.png",
  "images": [
    "./assets/screenshots/01-start.webp",
    "./assets/screenshots/02-inbox.webp",
    "./assets/screenshots/03-meetups.webp",
    "./assets/screenshots/04-courses.webp",
    "./assets/screenshots/05-chat.webp",
    "./assets/screenshots/06-wallet.webp",
    "./assets/screenshots/07-profile.webp",
    "./assets/screenshots/08-verein.webp",
    "./assets/screenshots/09-map.webp"
  ],
  "name": "TWENTY ONE Companion",
  "release_notes": "./dist/v1.13.0/zapstore-changelog.md",
  "repository": "https://github.com/HolgerHatGarKeineNode/twenty-one-companion",
  "summary": "Meetups, events, courses and group chat of the Bitcoin community",
  "tags": [
    "bitcoin",
    "nostr",
    "meetups",
    "community",
    "lightning",
    "events"
  ],
  "website": "https://portal.einundzwanzig.space"
}

releases (kind 30063)

2 releases indexed; latest 1.14.0.

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

1.14.0 — twenty-one-companion-v1.14.0.apk

sha256

eb8e8e78896de9d86a6329abdae9e2ed1c17c83c39194669d4e2ff46b420aadb

size

34.4 MB

archs

android-arm64-v8a

version code

149

apk cert sha256

44411e20a1b43d0f66cf99e1238a33e7e8fd9248f0d0d258f5e0727cfabf0b7c

download

twenty-one-companion-v1.14.0.apk

1.13.0 — twenty-one-companion-v1.13.0.apk

sha256

e4b515bcc2bfc1464d10d3c93ab6369544ac0748ac45e97ac2bdcf2d54adc70f

size

34.2 MB

archs

android-arm64-v8a

version code

145

apk cert sha256

44411e20a1b43d0f66cf99e1238a33e7e8fd9248f0d0d258f5e0727cfabf0b7c

download

twenty-one-companion-v1.13.0.apk

Showing the newest 2 asset descriptors; the full set is in /api/apps/0adf6747…