Master vs Audio Fastlane
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Master
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.
- Interactive learning system
- Step-by-step rule guidance
- Mnemonics and memory aids
- Interactive visuals
- Graphical feedback on answers
- Practice section with progress tracking
Read full descriptionHide full description
Master-Nav is a progressive COLREGS learning system developed by a Master Mariner. The COLREGS are notoriously difficult to learn and retain — Master-Nav makes it significantly easier through an interactive system built around how your brain actually works. Instead of guessing through random question banks, Master-Nav guides you step by step through every rule from start to finish. Wrong answers are revisited until the rules stick — properly. Complex regulations are broken down into learnable chunks — bite-sized sections supported by mnemonics, memory aids and interactive visuals designed around how the brain actually retains information. Every incorrect answer is shown graphically alongside the correct one — immediately clear, no confusion. And with a single tap, the relevant COLREGS rule is accessible from any question at any time. Master-Nav covers COLREGS Parts A to D — General, Steering & Sailing, Lights & Shapes and Sound & Light Signals — plus Annex IV Distress Signals. Over 1000 questions in multiple formats, with a dedicated Practice Section that tracks right, wrong and unanswered so you always know where to focus. COLREGS — the easy way.
Audio Fastlane
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.
- 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
Read full descriptionHide full description
Audio Fastlane turns the reading for your next ticket or certificate into audiobooks, so the studying happens while your hands are busy: on watch, washing down, in the gym, in the car, or on the way to the airfield. There are two sides to the library. Maritime covers yacht, merchant navy, and fishing and workboat tickets. Aviation covers the FAA private pilot certificate. Choose your side when you first open the app and the library follows. Every title is written from the syllabus, the textbooks and the course notes. Where a title has been checked against published accident reports, its page says which reports and when it was last reviewed, so you can see what you are trusting. LISTEN, READ, SEE, TEST - Listen. Plays in the background with lock-screen controls. Skip fifteen seconds either way, change speed from 0.5x to 2x, and pick up exactly where you left off, to the second. - Read along. Pull up from the player and the chapter's text rides up over it, with the word being spoken highlighted. Tap any word to jump the audio there. Press and hold a term to see what it means. Turn the text up large, or let it scroll itself. - Visual recaps. On most titles, each chapter has a strip of short animated diagram cards, one idea per card, for the rules that are easier seen than heard. - Exam-style questions. Questions on each chapter, a random set from any book, a mixed exam across your route, and practice on the questions you keep getting wrong. BUILT FOR THE WAY YOU STUDY - Routes and tickets. Home shows one button for each route, in ladder order from entry level to the top ticket. Tell the app what you are working towards and your own route comes first. - Progress. A daily listening goal, a streak, the titles you have finished, and a running total of the hours you have put towards your ticket or certificate. - Downloads on tap, a chapter or a whole book, for listening with no signal. Nothing downloads on its own. - Sleep timer: 15, 30, 45 or 60 minutes, or the end of the chapter. - Car mode: one tap from the player for large controls you can use at a glance. - Bookmarks, and a share link for any chapter. - Reminders, if you want them. Notifications are off until you say yes, and you can switch them off in Settings. - Report a bug from inside the app. FIVE TITLES FREE, FOR GOOD No subscription and no account: COLREGs Explained, COLREGs Word for Word, Yachtmaster Offshore, The Casualties That Wrote the Rules of the Sea, and Private Pilot: The Accidents That Wrote the Rules of the Sky. ALL ACCESS All Access unlocks every title in the library, new ones included, with their read-along, recaps and questions. It comes in 1-month, 3-month and 12-month plans. Customers who are eligible for the introductory offer start with a 3-day free trial; the app tells you before you buy whether you are eligible. Prices are shown in the app in your local currency. YOUR ACCOUNT The free titles need no account. An account keeps your place in step across your devices, and you can delete it yourself in Settings at any time. COMING FROM THE OLD APP Your subscription comes with you: open the app and tap Restore, or sign in. Listening positions, bookmarks and downloads start again on this version. SUBSCRIPTION INFORMATION All Access is an auto-renewing subscription, sold in 1-month, 3-month and 12-month lengths. Payment is charged to your Apple Account at confirmation of purchase. It renews at the same price unless cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours of the end of that period. Manage or cancel in your Apple Account settings after purchase. Where a free trial is offered, any unused part of it is forfeited if you buy a subscription before it ends. Privacy Policy: https://audiofastlane.com/policies/privacy-policy Terms of Use (EULA): https://audiofastlane.com/policies/terms-of-service
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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. Both last shipped on October 24, 2026.
| Parameter | Master | Audio Fastlane |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.8 (100 ratings) — better | — |
| Positive reviews | 96.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 100 — better | — |
| Update frequency | Fortnightly | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 117 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | Peterjohn Chisholm | Henry Peace |
Customer experience
Master
Audio Fastlane
In-app purchases
Master
No in-app purchases
Audio Fastlane
- All Access – 1 Month3 Days trial$24.991 Month
- All Access – 3 Months3 Days trial$59.993 Months
- All Access – 6 Months3 Days trial$99.996 Months
Show 1 moreShow fewer
- All Access – 12 Months3 Days trial$149.991 Year








