About
Bubbletrail is a free, open-source dive log for recording and organising your scuba dives. It connects directly to dive computers over Bluetooth, imports logs from Subsurface and other programs, and displays dive profiles including depth, temperature, tank pressure, and calculated deco. Whether you're a recreational diver or into technical diving with multiple gas mixes, Bubbletrail keeps your dive history in one place.
The app aims for a modern, intuitive interface and surfaces best-practice metrics like surface gradient factors (SurfGF) to help you understand your dives better.
Features
- Manage dives and dive sites, with tags, ratings, and descriptions
- Import dives from Bluetooth LE dive computers
- Keep track of dive equipment, import equipment from MacDive
- Calculate deco ceiling and surface GF using Buhlmann ZHL-16c
- Cross platform device-to-device syncing
- Import logs from Subsurface, MacDive, and other programs using UDDF format
- Export logs in Subsurface format
- Free and open source
Currently supported platforms are macOS, iOS, and Android.
Downloads
- For macOS, grab the app from the latest GitHub release.
- For iOS, download the app from the App Store.
- For Android, download the app from the Play Store.
Contact & support
For support, questions and general discussion, please use the Bubbletrail Discussion forum on GitHub. For clear feature requests and bug reports you can directly file an issue, however it's often better to discuss beforehand in the forum.
Screenshots
macOS

iOS
