Watch Spring
Mechanical Watch Companion
Only for iPhone
$3.99 · Designed for iPhone. Not verified for macOS.
iPhone
Track. Analyse. Enjoy.
Track mechanical watch accuracy and see drift over time. Log quick time-points, visualise trends with simple charts, keep notes about watch details, track service history, and balance your wrist time across your collection.
Why it’s useful
• Understand seconds-per-day accuracy and long-term behaviour
• Spot issues after knocks or before/after a service
• See which watches get the most wear
• Keep track of key facts about your watches in one place
Features
• Accuracy charts & trend
• Wear calendar & statistics
• Watch collection summary shown as info cards; for a quick snapshot of key facts
• Log servicing and repairs with notes and dates; see the before/after impact on accuracy
• View your watch ownership history timeline
• Time-setting clock (seconds-accurate)
• Daily reminders
• Import/Export CSV; share charts
• iPhone-native, no ads, data stays on device
How it works
1. Press and hold on the on-screen clock
2. When your watch matches the time, lift your finger
3. Watch Spring logs the time-point, updates charts, and marks your wear
Bug fix, code tidy and small battery optimisation updates.
Pie charts:
- New time-range filter on the wear-time pie charts. Use the filter button to switch the right-hand pie between time frames and also hide sold watches
Clock view:
- Haptics will no longer fire if the phone is in low power mode
Service log:
- Fixed an issue that stopped service logs from saving properly after editing
Time Points:
- Added confirmation before deleting time points
- Added haptics to the plus and minus time buttons
Watch details:
- If there are are more than 20 points in the page indicator under accuracy tracking then the page indicator will start to scroll
Load file:
- Added success notification to make it clearer that the import worked
The developer, Simon Greig, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Simon Greig
- Size
- 10.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Simon Greig 2026

