Blue Service

Give your tennis practice a simple, personal record with Blue Service.

Choose a practice plan on a nine-zone court, tap the zone you observed, and explicitly record Hit, Miss, or Unknown. Every count comes from an entry you choose. You can leave a zone unrecorded and undo your latest attempt.

Make the court your own:

- Start with labeled sample layouts for wide serves, deep returns, or center consistency.
- Tap target cells to create and edit layouts, then save or duplicate them.
- Name completed sessions and add notes.
- Search your local layout and session library.
- Compare two completed sessions from the same drill, including their original target grids and separate outcome counts.

Your current session, editing drafts, saved records, and view settings stay on your device. Core practice features work offline. Blue Service has no account, advertising, analytics, or practice-data server. Device backups may include app data according to your system settings. You can delete local practice data from About and data.

Blue Service is a manual target board and notebook. It does not automatically track tennis balls, measure play, or predict performance. Comparisons show arithmetic differences between recorded counts.

Recent changes:
Initial release.