Stopwatch 4 Time Study
Thomas Herzog Productivity iPhoneiPadiPod touch
Stopwatch 4 Time Study is a free Productivity app for iPhone and iPad by Thomas Herzog. Rated 5.0/5 from 1 ratings. Requires iOS 18.0.
- Rating
- 5.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 11 MB
- Age 4+
- Updated
- Sep 20
- 2026 · v2.0.1
Screenshots
About Stopwatch 4 Time Study
Stopwatch 4 Time Study is a professional yet easy-to-use app for recording, analyzing, and documenting cycle times on iPhone and iPad. Features * Display times in decimal minutes (1/100 min) or minutes and seconds * Add, deactivate, reactivate, and delete individual measurements * Record cycle times manually or automatically * Automatic triggering using the accelerometer to detect movement or vibration * Automatic triggering using the camera by comparing a reference image with the current image * Define the number of parts produced per cycle * Apply individual performance ratings to measurements * Add notes and predefined reasons for interruptions * Configure side buttons for convenient operation Statistics and Analysis * Parts per hour * Average, range, minimum, and maximum * Accuracy (epsilon) and standard deviation * Number of valid measurements * Estimated number of additional measurements required to reach the configured accuracy target * Color-coded minimum and maximum values * Distribution chart, individual-value chart, and boxplot * Optional display or hiding of deactivated measurements * Outlier analysis based on the 1.5 IQR rule Managing Time Studies * Rename and delete recordings * Organize recordings in folders * Move recordings between folders * Sort recordings by name or date * Search recordings * Import and export time studies in the .sft format using the iOS Share Sheet * Export measurement data as CSV with configurable decimal and value separators * Create and restore complete ZIP backups Reports and Sharing * Generate comprehensive PDF time-study reports * Include statistics, charts, individual measurements, and notes * Share SFT, CSV, PDF, and ZIP files using the iOS Share Sheet iPad and Process Flow * Optimized split-view interface for iPad * Perform standard time studies using the same features available on iPhone * Import Process Flow projects prepared with the Stopwatch 4 TS Web App * Record individual activities and complete production cycles * Add part notes and interruption reasons * Export completed Process Flow measurements while preserving the original project and folder structure Additional Options * Light and dark appearance * Haptic feedback * Optional prevention of automatic screen locking * Configurable OEE, accuracy, performance-rating, and CSV settings * Read-only access to existing legacy iCloud recordings The legacy iCloud area is provided only for accessing and downloading existing cloud recordings. Uploading new recordings and sharing them using Sharing Keys are no longer supported.
What’s new
Version 2.0.1 · Updated September 20, 2026
* Improved haptic feedback for a more precise feel when triggering the stopwatch. * Improved stopwatch visualization. Animations can now be disabled in Settings. * Camera: The +/- buttons for Prediction now work in the correct direction.
App privacy
The developer, Thomas Herzog, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Stopwatch 4 Time Study | 5.0 / 5 (1 rating) | Free | September 20, 2026 | |
| Shift Plan Reminder | – | 3.99 USD | Oct 6, 2026 | Compare |
| AllSwipe: Swipe Photo Cleaner | 4.6 / 5 (7) | Free | Aug 6, 2026 | Compare |
| SuperShot: Screenshot & Markup | 4.2 / 5 (5) | Free | Oct 19, 2026 | Compare |
| TimeCatcher | – | Free | Aug 8, 2026 | Compare |
| Sheaf: Offline OCR & Documents | 1.0 / 5 (1) | Free | Sep 13, 2026 | Compare |
| Breakin': Shift Work Planner | 5.0 / 5 (1) | Free | Sep 24, 2026 | Compare |