Android Wear support: Use your watch to track your climbs, no phone needed.
Offline and Cloud backup: We know that the network reception at the gym may be not so good, so the app is entirely designed to work entirely offline. Once connection is available, your data is securely saved to Firebase.
The app is open source, get the code at https://github.com/google/climb-tracker
It would be great if you could edit a route hardness you input. And naming a route should be possible, so you can use this as diary for your climbed outside climbs.