The most complete way to track the accuracy of your watches over time.

- 2 ways to add timing events - manual tap, and image.
- Ability to reset watch to accurate time, and continue tracking it, by telling the app to adjust all previous timing events.
- Open a link in a browser with a large graph of all your watches.
- Show the graph as absolute difference, or as drift.
- Stats about how your watch compares to others, and others of the same brand.
- Importing and exporting data to iCloud or CSV.
- See the average drift for all time, or between the last 2 events.
- When adding a timing event, the app predicts where it thinks your watch will be based on historic drift. That means minimal fiddling about.
- Customise predicted time in the settings.
- No need to create an account to use the online features, no in app purchases.