# Master vs FindSpeedCalculator

The clearest difference is review sentiment: Master at 97% against FindSpeedCalculator's 50%. Master also leads on rating (4.7 vs 4.0) and ratings volume (94 vs 1). FindSpeedCalculator's advantage is price (Free vs $1.99). On ads, in-app purchases and device support there is nothing between them.

FindSpeedCalculator is free to download; Master costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Master holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Master has 94 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 97% of Master's written reviews are positive against 50% of FindSpeedCalculator's.

Master ships an update fortnightly, FindSpeedCalculator every 2 months. The most recent releases landed on September 27, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Master | FindSpeedCalculator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (94 ratings)](https://appshunter.io/ios/app/master-nav/id1602390396/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/findspeedcalculator/id6447476098/reviews) |
| Number of ratings | **94** | 1 |
| Positive reviews | **96.9% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Paid | **Free** |
| Size | 117 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Peterjohn Chisholm](https://appshunter.io/developer/1602390398) | [Motonari Hibi](https://appshunter.io/developer/386737172) |

## What reviewers say

### Master

[App page](https://appshunter.io/ios/app/master-nav/id1602390396)

Learn maritime navigation rules with an interactive system designed for effective retention. This app breaks down complex regulations into manageable sections with visual aids and mnemonics. It revisits incorrect answers and provides instant graphical feedback, making the learning process intuitive and efficient.

**Highlights:** Interactive learning system, Step-by-step rule guidance, Mnemonics and memory aids, Interactive visuals, Graphical feedback on answers, Practice section with progress tracking

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

**In-app purchases:** none


### FindSpeedCalculator

[App page](https://appshunter.io/ios/app/findspeedcalculator/id6447476098)

Easily calculate distance, time, or speed by inputting any two known values. This educational tool provides automatic calculations to solve for the missing variable.

**Highlights:** Calculate distance, Calculate time, Calculate speed, Automatic calculations, Input two values

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

**In-app purchases:** none


## Frequently asked questions

### Is Master free?

Master costs $1.99, with no in-app purchases.

### Is FindSpeedCalculator free?

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

### Which has better reviews, Master or FindSpeedCalculator?

Master is rated higher. Master averages 4.7 out of 5 from 94 ratings, while FindSpeedCalculator averages 4.0 from 1 ratings.

### Do Master or FindSpeedCalculator have ads?

Neither Master nor FindSpeedCalculator shows ads.

### Which is updated more often, Master or FindSpeedCalculator?

Master ships an update fortnightly, and FindSpeedCalculator every 2 months. Most recently, Master was updated on September 27, 2026 and FindSpeedCalculator on September 3, 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.*