CruxCoach
Open-source Android app for the Kilter Board: browse 85,000+ climbs offline, light up holds via Bluetooth, log your sessions. No account, no Google services, no tracking.
Cost / License
- Free
- Open Source (GPL-3.0)
EUPlatforms
- Android
Features
Properties
- Decentralized
- Privacy focused
CruxCoach News & Activities
Recent activities
- CruxCoach updated CruxCoach
CruxCoach added CruxCoach as alternative to Kilter Board- niksavc liked CruxCoach
CruxCoach added CruxCoach as alternative to Tension Board
CruxCoach added CruxCoach as alternative to Moon Board- CruxCoach added CruxCoach
CruxCoach information
Developed by
CruxCoach Licensing
Open Source (GPL-3.0) and Free product.Alternatives
2 alternatives listedSupported Languages
- English
- German
What is CruxCoach?
CruxCoach is an open-source Android app for the Kilter Board, the adjustable LED training board found in many climbing gyms. Browse over 85,000 community-contributed climbs offline, light up holds via Bluetooth, and log every send, attempt, and rating — all without creating an account.
Built in 2026 as an indie alternative to the official Kilter app following the Aurora-Kilter app disruption, CruxCoach prioritises data ownership. No central server, no Google Play Services dependency, no telemetry, no third-party SDKs. Your identity is a Nostr keypair generated locally; your logbook lives in a SQLCipher-encrypted database whose key never leaves your device.
Filter climbs by grade, angle, quality, move count, or setter. Set custom hold colours. Search by tapping holds on the board image. Optionally import your existing Kilter logbook, then export anytime as JSON or as an encrypted backup only you can restore.
Distributed via Zapstore (Nostr-native Android store) and as a directly-signed APK from Codeberg releases. Runs on de-Googled Android (GrapheneOS, /e/OS, LineageOS) just as well as on stock Android 9+. UI in German and English.