Roll Period
Rob Grin Utilities iPhoneiPadiPod touch
Roll Period is a free Utilities app for iPhone and iPad by Rob Grin. Requires iOS 15.0. Updated October 2, 2026.
- Price
- Free
- on the App Store
- Size
- 27 MB
- Age 4+
- Updated
- Oct 2
- 2026 · v2.0.1+18
Screenshots
About Roll Period
RollPeriod transforms your smartphone into a practical tool for vessel motion analysis. Using the built-in accelerometer, the app provides real-time measurements and insights: Roll and pitch periods are calculated with FFT analysis. Data import and export with CSV file support. Whether you are a sailor, marine engineer, or navigation enthusiast, RollPeriod helps you better understand vessel dynamics and make safer decisions at sea.
What’s new
Version 2.0.1+18 · Updated October 2, 2026
Save method rework. UI improvements. Fix bugs. database and share function rework.
App privacy
The developer, Rob Grin, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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