# Master vs Audio Fastlane

The clearest difference is price: Audio Fastlane at Free against Master's $1.99. Master's advantage is in-app purchases (none vs 4) and ads (none vs shown). On review sentiment, update cadence, device support and iOS requirement there is nothing between them.

Audio Fastlane is free to download; Master costs $1.99 up front. Audio Fastlane sells 4 in-app purchases, starting at $24.99 per month. Master asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Master | Audio Fastlane |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.8 (100 ratings)](https://appshunter.io/ios/app/master-nav/id1602390396/reviews)** | — |
| Number of ratings | **100** | — |
| Positive reviews | 96.9% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#167** | — |
| Size | 117 MB | 74 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Peterjohn Chisholm](https://appshunter.io/developer/1602390398) | [Henry Peace](https://appshunter.io/developer/6787689360) |

## What reviewers say

### Master

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

**Currently charting:** #167 Top Paid · Education (US App Store)

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


### Audio Fastlane

[App page](https://appshunter.io/ios/app/audio-fastlane/id6787689358)

This app transforms commutes and workouts into study sessions for maritime professionals. It offers audiobooks covering essential qualifications, taught through real-life incidents to enhance retention for exams.

**Highlights:** Full exam prep audiobooks, Disaster-anchored teaching method, Written by working deck officers, Continue listening across titles, Chapter navigation by syllabus, Adjustable playback speed, Car mode with simple controls, Offline listening support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access – 1 Month | $24.99 | per month |
| All Access – 3 Months | $59.99 | per 3 months |
| All Access – 6 Months | $99.99 | per 6 months |
| All Access – 12 Months | $149.99 | per year |


## Frequently asked questions

### Is Master free?

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

### Is Audio Fastlane free?

Audio Fastlane is free to download, with in-app purchases available.

### Do Master or Audio Fastlane have ads?

Audio Fastlane shows ads; Master does not.

### Which is updated more often, Master or Audio Fastlane?

Master ships an update fortnightly, and Audio Fastlane fortnightly. Most recently, Master was updated on October 24, 2026 and Audio Fastlane on October 25, 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.*