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.