# Sea Current Measure Tool — Measure sea current easily > iPhone app to measure sea current speed and direction for sailing. (iPhone/iPad app by Master Sailing jdoo.) - Source: https://appshunter.io/ios/app/sea-current-measure-tool/id6448216978 (this page in markdown: same URL + `.md`) - Developer: [Master Sailing jdoo](https://appshunter.io/developer/1680451361) - Category: Sports - Price: $17.99 - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 14 MB - Languages: American English - Released: 2023-06-12 - Data updated: 2026-08-23 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/sea-current-measure-tool/id6448216978/reviews.md ## What is Sea Current Measure Tool? Sea Current Measure Tool helps sailors and coaches quickly measure sea current speed and direction directly on the water using only an iPhone. The app is designed for sailing race preparation and training. Understanding the current in the race area can be critical for making the right tactical decisions. Even small currents can affect boat speed, laylines and mark roundings. Sea Current Measure Tool allows you to perform quick and reliable current measurements while on the water. Simply drop a floating stick or object into the water, press Start, wait a few seconds, retrieve the stick and press Stop. The app calculates the speed and direction of the water movement using GPS data. All measurements are stored so you can review them later and build a better understanding of the current patterns in your sailing area. Features Measure sea current speed and direction Simple start and stop measurement process GPS based current calculation View a list of all measurements Display measurements on the map Useful for race preparation and training sessions Designed for sailing coaches and racers How it works Drop a measuring stick or floating object in the water Press Start when the stick enters the water Wait a few seconds while the stick drifts Retrieve the stick and press Stop The app calculates the current vector based on the GPS movement Use cases Sailing race preparation Training sessions Understanding current patterns Mapping current across the race area Coaching analysis and tactical planning Sea Current Measure Tool is designed for sailors who want a fast and practical way to measure sea current directly on the water without additional equipment. Location access is required to calculate the movement of water during measurements and to display measurements on the map. ## Key features - Measure sea current speed and direction - GPS-based current calculation - Simple start and stop measurement - Store and review measurements - Display measurements on map - Useful for race preparation and training ## Chart rankings - #134 in Top Paid · Sports (US App Store) ## Frequently asked questions about Sea Current Measure Tool ### What is Sea Current Measure Tool? Sea Current Measure Tool is a paid application designed for sailors and coaches to measure sea current speed and direction directly on the water using an iPhone. It utilizes GPS data to calculate water movement. ### How does Sea Current Measure Tool work? You drop a floating object into the water, press 'Start' when it enters, wait for it to drift, then press 'Stop' when you retrieve it. The app then calculates the current vector based on the GPS movement of the object. ### Is Sea Current Measure Tool useful for sailing races? Yes, the app is specifically designed for sailing race preparation and training. Understanding current can be critical for making the right tactical decisions during a race. ### Can I review past measurements with Sea Current Measure Tool? Yes, all measurements are stored within the app. This allows you to review them later and build a better understanding of current patterns in your sailing area. ### What devices support Sea Current Measure Tool? Sea Current Measure Tool supports iPhones and iPads. It requires location access to function correctly. ### How much does Sea Current Measure Tool cost? Sea Current Measure Tool is a paid app priced at $17.99. There are no in-app purchases or advertisements mentioned. ### How often is Sea Current Measure Tool updated? The latest version, 3.09, was released on March 27, 2026. While this indicates a recent update, the exact update frequency is not specified. ### What is the age rating for Sea Current Measure Tool? Sea Current Measure Tool has an age rating of 4+. This indicates it is suitable for users of all ages. ## Version history (last 5 releases) ### 3.09 — 2026-03-27 Teams. You can create or join the team and share all the measurements. ### 3.0 — 2026-03-18 Account creating. Have your measurements synced between devices and stored privately in the cloud. ### 2.5 — 2026-03-14 Fixed text size getting too large. ### 2.4 — 2026-01-21 Arrows rotate when the user rotates the map. ### 2.3 — 2025-06-30 You can share measurements as CSV file. Just select them in the list and tap on share Button. ## Apps similar to Sea Current Measure Tool | App | Rating | Price | Category | | --- | --- | --- | --- | | [Trofeo Princesa Sofía](https://appshunter.io/ios/app/trofeo-princesa-sofia/id1092568177) | — | Free | Sports | | [IODA Optimist](https://appshunter.io/ios/app/ioda-optimist/id6504682148) | — | Free | Sports | | [Panam Regatta](https://appshunter.io/ios/app/panam-regatta/id6450258614) | — | Free | Sports | | [Beat Length Calculator](https://appshunter.io/ios/app/beat-length-calculator/id1635014077) | 4.0 (1) | Free | Sports | | [Long Beach OCR](https://appshunter.io/ios/app/long-beach-ocr/id6746574134) | — | Free | Sports | | [Vantage Sailing](https://appshunter.io/ios/app/vantage-sailing/id6544807723) | 4.8 (12) | Free | Sports | ## More apps by Master Sailing jdoo - [VideoGrab for SailViewer](https://appshunter.io/ios/app/videograb-for-sailviewer/id6447163694) - [SailLogger](https://appshunter.io/ios/app/saillogger/id6478832945) - [SailViewer Timer](https://appshunter.io/ios/app/sailviewer-timer/id6497406672) All apps by Master Sailing jdoo: https://appshunter.io/developer/1680451361 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*