# TideMeasure vs Sail Scan

The clearest difference is price: Sail Scan at Free against TideMeasure's $19.99. Sail Scan also leads on update cadence (daily vs every 2 months) and ratings volume (3 vs 1). TideMeasure's advantage is chart position (#172 vs unranked). On rating, ads, in-app purchases and device support there is nothing between them.

Sail Scan is free to download; TideMeasure 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 TideMeasure against 5.0 for Sail Scan. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

TideMeasure ships an update every 2 months, Sail Scan daily. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TideMeasure | Sail Scan |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/tidemeasure-sea-current/id6448216978/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/sail-scan/id6762089009/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Paid | **Free** |
| Best chart rank | **#172** | — |
| Size | 14 MB | 34 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Master Sailing jdoo](https://appshunter.io/developer/1680451361) | [Sail Scan LLC](https://appshunter.io/developer/6820238278) |

## What reviewers say

### TideMeasure

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

**Currently charting:** #172 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


### Sail Scan

[App page](https://appshunter.io/ios/app/sail-scan/id6762089009)

This app uses your phone's camera to analyze sail shape by reading trim stripes. It provides detailed measurements like camber depth, draft position, and twist, helping sailors make real-time adjustments to improve speed and performance. Save your scans, build a library, and connect rig settings to your progress on the water.

**Highlights:** AI-powered sail shape analysis, Measures camber depth, draft position, and twist, Works on mainsails and jibs, Real-time adjustments, Save and build sail scan library, Compare scans and track settings

**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 Sail Scan free?

Sail Scan is free to download, with no in-app purchases.

### Which has better reviews, TideMeasure or Sail Scan?

TideMeasure and Sail Scan are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do TideMeasure or Sail Scan have ads?

Neither TideMeasure nor Sail Scan shows ads.

### Which is updated more often, TideMeasure or Sail Scan?

TideMeasure ships an update every 2 months, and Sail Scan daily. Most recently, TideMeasure was updated on October 30, 2026 and Sail Scan on October 24, 2026.

---

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