# BoatNotes Pro vs Sea Current Measure Tool

The clearest difference is price: BoatNotes Pro at $4.99 against Sea Current Measure Tool's $19.99. BoatNotes Pro also leads on update cadence (every 3 days vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

BoatNotes Pro costs $4.99 and Sea Current Measure Tool $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BoatNotes Pro ships an update every 3 days, Sea Current Measure Tool every 3 months. The most recent releases landed on September 11, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | BoatNotes Pro | Sea Current Measure Tool |
| --- | --- | --- |
| Price | **$4.99** | $19.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sea-current-measure-tool/id6448216978/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 months |
| Monetization | — | Paid |
| Size | 2 MB | 15 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Susanne LEECH](https://appshunter.io/developer/1328526040) | [Master Sailing jdoo](https://appshunter.io/developer/1680451361) |

## What reviewers say

### BoatNotes Pro

[App page](https://appshunter.io/ios/app/boatnotes-pro/id1552768215)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Sea Current Measure Tool

[App page](https://appshunter.io/ios/app/sea-current-measure-tool/id6448216978)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BoatNotes Pro free?

BoatNotes Pro costs $4.99, with no in-app purchases.

### Is Sea Current Measure Tool free?

Sea Current Measure Tool costs $19.99, with no in-app purchases.

### Do BoatNotes Pro or Sea Current Measure Tool have ads?

Neither BoatNotes Pro nor Sea Current Measure Tool shows ads.

### Which is updated more often, BoatNotes Pro or Sea Current Measure Tool?

BoatNotes Pro ships an update every 3 days, and Sea Current Measure Tool every 3 months. Most recently, BoatNotes Pro was updated on September 11, 2026 and Sea Current Measure Tool on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*