---
title: "Roll Period - Reviews, Revenue and Downloads in New Zealand | Apple App Store"
description: "RollPeriod transforms your smartphone into a practical tool for vessel motion analysis. Using the built-in accelerometer, gyroscope, and GPS, the app provides real-time measurements and insights: Roll"
---

# Roll Period — New Zealand

![Roll Period App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/34/62/6f/34626f2e-7d35-1c8c-5729-ea1c7882f4ad/AppIcon-1x_U007emarketing-0-8-0-0-85-220-0.png/434x0w.png)

**Developer:** [Rob Grin](https://apptail.io/developer/rob-grin-JMFFU)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.marin.rollperiod
**Store:** Apple App Store
**Country:** New Zealand
**Version:** 1.0.0+1 (released 2025-08-29)
**Original Release:** 2025-08-29
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/nz/app/app/id6751540867)
**AppTail Page:** [https://apptail.io/app/roll-period-sNVw/new-zealand](https://apptail.io/app/roll-period-sNVw/new-zealand)

## Roll Period Description
RollPeriod transforms your smartphone into a practical tool for vessel motion analysis.
Using the built-in accelerometer, gyroscope, and GPS, the app provides real-time measurements and insights:
Roll and pitch periods calculated with zero-crossing detection and FFT analysis.
Accurate vessel speed by combining GPS and IMU data.
Interactive visuals including a compass, wave direction, and real-time charts.
Risk assessment with alerts and recommendations for safer navigation.
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.

## Roll Period Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f4/54/d9/f454d92b-aad7-58fa-0f99-7fb3ece81e28/screen2.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/62/38/b4/6238b403-634d-b5b8-e6fa-5d593ea036de/screen1.png/1320x2868.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/76/5a/e2/765ae2b6-1003-63a6-a800-fc6d7e769dfe/screen3.png/1320x2868.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ed/2a/dd/ed2add89-4de7-1f5f-4288-40015bd7c7f7/screen5.png/1320x2868.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/db/b3/f4/dbb3f477-6216-79a4-37b1-41e7caac6788/screen4.png/1320x2868.png)







## Roll Period Available In
- [New Zealand](https://apptail.io/app/roll-period-sNVw/new-zealand)
- [Saudi Arabia](https://apptail.io/app/roll-period-sNVw/saudi-arabia)
- [United States](https://apptail.io/app/roll-period-sNVw/united-states)

---

## About AppTail

[AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends.

- [Search Apps](https://apptail.io)
- [Top Charts](https://apptail.io/top-iphone-apps)
- [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer)

*Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*