Sea Current Measure Tool vs ROCKBROS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sea Current Measure Tool
This tool helps sailors and coaches measure sea current speed and direction directly on the water using an iPhone. It's designed for race preparation and training, using GPS data to calculate water movement from a floating object.
- 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
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Measure sea-current speed and direction from your iPhone in minutes—built for sailors, coaches, and race teams. Map readings across the race area, review history, export CSV data, and share measurements with your team for smarter tactical decisions. WHY TIDEMEASURE Even a small current can change boat speed, laylines, mark roundings, and the favored side of the course. TideMeasure turns a simple drift test into a clear speed-and-direction result without specialized hardware. HOW IT WORKS 1. Drop a floating stick or small object into the water. 2. Tap Start as it begins to drift. 3. Retrieve it after a short measurement. 4. Tap Stop to see current speed and direction. FEATURES • Measure current speed and direction using GPS • View results in m/min, m/s, cm/s, or knots • Map measurements across the race area • Review saved measurements and history • Create or join a team and share readings • Select and export measurements as CSV • Continue measuring offline TideMeasure is designed for race preparation, coaching, training sessions, and building a clearer picture of current around the course. Location access is required during measurements and for displaying results on the map. Apple Maps data is used for mapping.
ROCKBROS
Connect your cycle computer and indoor trainers for comprehensive data analysis. This app offers professional insights and dedicated services for cycling enthusiasts to enhance their indoor training.
- Cycle computer connectivity
- Indoor trainer support
- Professional data analytics
- Dedicated indoor training services
- Seamless indoor training sessions
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ROCKBROS offers cycle computer connectivity and data analysis features, supporting connections to indoor cycling trainers for seamless indoor training sessions. It provides professional data analytics and dedicated indoor training services tailored for cycling enthusiasts.
Screenshots
Verdict
The clearest difference is price: ROCKBROS at Free against Sea Current Measure Tool's $19.99. ROCKBROS also leads on iOS requirement (13.0 vs 17.0). On rating, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
ROCKBROS is free to download; Sea Current Measure Tool costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Sea Current Measure Tool against 5.0 for ROCKBROS. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Sea Current Measure Tool ships an update every 3 months, ROCKBROS every 2 months. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.
| Parameter | Sea Current Measure Tool | ROCKBROS |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 118 MB |
| Age rating | 4+ | 4+ |
| Developer | Master Sailing jdoo | 义乌洛克体育用品有限公司 |
Customer experience
Sea Current Measure Tool
ROCKBROS
In-app purchases
Sea Current Measure Tool
No in-app purchases
ROCKBROS
No in-app purchases
Questions
Is Sea Current Measure Tool free?
Is ROCKBROS free?
Which has better reviews, Sea Current Measure Tool or ROCKBROS?
Do Sea Current Measure Tool or ROCKBROS have ads?
Which is updated more often, Sea Current Measure Tool or ROCKBROS?
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