# TideMeasure vs Kroo App

The clearest difference is price: Kroo App at Free against TideMeasure's $19.99. Kroo App also leads on iOS requirement (15.0 vs 17.0). TideMeasure's advantage is chart position (#112 vs unranked). On update cadence, ads, in-app purchases and device support there is nothing between them.

Kroo App is free to download; TideMeasure costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TideMeasure ships an update every 2 months, Kroo App every 5 weeks. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | TideMeasure | Kroo App |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tidemeasure-sea-current/id6448216978/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Best chart rank | **#112** | — |
| Size | 14 MB | 2 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Master Sailing jdoo](https://appshunter.io/developer/1680451361) | [Andre Peixoto](https://appshunter.io/developer/6775717413) |

## What reviewers say

### TideMeasure

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

**Currently charting:** #112 Top Paid · Sports (US App Store)

Measure sea current speed and direction using your iPhone's GPS. Ideal for sailors, coaches, and race teams to map readings, review history, and share data for tactical advantage. Works offline.

**Highlights:** Measure current speed and direction with GPS, View results in multiple units (m/min, m/s, cm/s, knots), Map measurements across race areas, Review saved measurements and history, Create or join teams to share readings, Export measurements as CSV, Offline measurement capability

**Features:** Vision Pro support

**In-app purchases:** none


### Kroo App

[App page](https://appshunter.io/ios/app/kroo-app/id6775717411)

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

**In-app purchases:** none


## Frequently asked questions

### Is TideMeasure free?

TideMeasure costs $19.99, with no in-app purchases.

### Is Kroo App free?

Kroo App is free to download, with no in-app purchases.

### Do TideMeasure or Kroo App have ads?

Neither TideMeasure nor Kroo App shows ads.

### Which is updated more often, TideMeasure or Kroo App?

TideMeasure ships an update every 2 months, and Kroo App every 5 weeks. Most recently, TideMeasure was updated on November 7, 2026 and Kroo App on November 5, 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.*