A price tracker for humble stackers
If you don't need to transact but you want to keep an eye on the value of your stacks, OBT is exactly what you need.
Total privacy
The amount in each stack is entered by hand and never leaves your phone. OBT doesn't need seeds or keys.
Fast and lightweight
OBT doesn't connect to a node so it loads fast and has minimal battery impact.
Hodl with style
Four themes that follow your system's mode automatically.
Total privacy
Your data stays on your phone.
No accounts
No sign-up. Install the app and start tracking.
No tracking
Zero analytics, no ads, no fingerprinting.
On-device only
Your stacks stay on your phone. Nothing is uploaded.
Open source
MIT License. Don't trust, verify.
From September 2026, Google will require every Android developer to register and verify their identity, even for apps installed outside the Play Store. That threatens open-source apps like this one.