Support CruxCoach
CruxCoach is built and maintained by an indie developer in their spare time. The app is, and will stay, free and ad-free. If it helps your training, here's how you can keep it going.
Bitcoin Lightning
Easiest, instant, no account needed at the receiving end. Scan the QR with any Lightning-capable wallet — or copy the address into Zeus, Phoenix, Alby, Wallet of Satoshi, etc.
Any amount welcome, even a few sats. Zaps via Nostr also land at this address.
Contribute on Codeberg
Money isn't the only thing that helps. The cheapest contribution is feedback:
- File bug reports or feature requests on the issue tracker
- Send a pull request — see CONTRIBUTING.md for setup
- Help with translations beyond English and German
- Find a security issue? SECURITY.md describes responsible disclosure
Spread the word
If you climb at a gym with a Kilter Board and the official app keeps frustrating you, telling other climbers about CruxCoach is genuinely the highest-leverage thing you can do. The project grows by word of mouth — there's no marketing budget.
The single best way to spark that conversation: use CruxCoach's custom hold colors. When another climber walks past and sees non-standard LEDs lighting up your problem, they almost always ask what app you're using. That one question is worth more than any pitch you could make on your own.
What we don't take
No subscriptions, no premium tier, no recurring billing, no "Pro" version. The whole project is GPL-3.0 and stays that way. If we ever set up a structured way to fund the project (OpenCollective, Geyser, etc.), it'll be disclosed here first — never via stealth changes.