Comparison

VHF Trainer Lite vs Sailor's Deck

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

VHF Trainer Lite

Learn and practice VHF radio, Digital Selective Calling, and GMDSS with an immersive experience. This app offers learning modules, tests, and 3D simulations to help you master maritime radiocommunication equipment and distress procedures in a safe environment.

Highlights
  • VHF radio, DSC, and GMDSS learning
  • Interactive tests and quizzes
  • 3D maritime simulation
  • Distress alert practice
  • Progress tracking and scoring
Features
Read full description

Changing the way of learning VHF Trainer Lite is the most complete application on the market for learning and practicing about VHF radio, Digital Selective Calling and GMDSS. It is divided into three sections (Learning, Test and Simulation) so you can have an immersive experience aboard a ship, read, train and test all your knowledge in a didactic and fun way. in the full version you will get : - 9 illustrated chapters in full color and with great quality that will allow you to learn in an easy and attractive way everything related to the Global Maritime Distress and Safety System and radiocommunication equipment at sea. - More than 20 scenarios: The 3D simulation allows you to navigate aboard a ship using a marine VHF equipment with all its functions: you will receive radio communications, send alerts and you will be able to experience situations of distress. Get ready to navigate and experience an interaction with the ocean in a safe and controlled environment. - More than 200 questions about the VHF equipment: Answer questions, join concepts with arrows and choose the right option from a list of possibilities in a trivia that will allow you to evaluate the knowledge that you have assimilated. VHF Trainer Lite will score your answers and congratulate you or invite you to continue studying according to your performance. Our focus is on advancing, growing and evolving, always thinking about the end user experience, and to be able to offer products of quality and easy assimilation following the principle "if I listen, I forget; If I see it, I remember it; If I do and I practice it, I understand." ----------------------- Keywords: VHF, DSC,VHF-DSC, SRC, GMDSS, Skipper, PNB, PER, LRC, General operator, Short range certificate

About

Sailor's Deck

Master navigation lights and day shapes for skipper exams with this flashcard app. It uses spaced repetition to build lasting visual memory, tracks your progress, and resurfaces difficult configurations until they stick. Study offline with no ads or subscriptions.

Highlights
  • Spaced repetition learning
  • Four-layer progression of study
  • Confusion pair training
  • Offline functionality
  • Progress tracking and session summaries
  • Association-specific terminology
  • Daily streak motivator
Features
Read full description

Navigation lights and day shapes is the hardest topic on every skipper exam. Minimum 50 configurations to recognise, from any bearing, under time pressure. Most sailors try to cram it from a textbook the night before. It doesn't work. Sailor's Deck is built specifically for this. Flashcards with spaced repetition — the study method proven to build lasting visual memory — sequenced across four layers from basic light identification through to full composite scenarios. The app tracks what you know, resurfaces what you don't, and keeps drilling the configurations you keep getting wrong until they stick. HOW IT WORKS Each session presents set of cards drawn from your personal review queue. Answer correctly and the card moves to a longer review interval. Answer wrong and it comes back sooner. Get a category badly wrong and the relevant COLREGS rule is shown on the spot. The four-layer progression matches the way your exam actually tests you: — Layer 1: Base lights — masthead, sidelights, sternlight — Layer 2: Status lights — what the vessel is doing — Layer 3: Day shapes — cone, ball, cylinder, diamond — Layer 4: Composite scenarios — full patterns from specific bearings Confusion pairs are built in. Miss a RAM card and the NUC card is queued immediately behind it. Miss a trawling vessel and the purse-seine card follows. The pairs most likely to lose you marks on the exam are pre-wired into the system. 100+ CARDS. ALMOST EVERY CONFIGURATION. Power-driven vessels, sailing vessels, vessels not under command, restricted in ability to manoeuvre, constrained by draught, pilot vessels, mine clearance, dredgers, air-cushion vessels, fishing vessels trawling and not trawling, vessels at anchor, towing and pushing — plus all COLREGS day shapes. Every card reviewed by a qualified sailing instructor. WORKS FOR YOUR ASSOCIATION Select your certification on first launch and the app uses your association's terminology throughout: — RYA Day Skipper / Coastal Skipper / Yachtmaster — IYT Bareboat / Coastal / Master of Yachts — ISSA Inshore / Offshore — ASA 104 / 106 One card library. Your language. NO ACCOUNT. NO INTERNET. NO NONSENSE. Everything runs offline. Progress is saved locally. No login, no subscription, no ads. Free — permanently, with no card limit and no time limit on the entry skipper deck. DAILY STREAK + PROGRESS TRACKING A daily streak keeps you coming back in the weeks before your exam. Per-category accuracy shows exactly where your weak spots are. Session summaries flag the COLREGS rules you need to read. Study on the boat. Study on the bus. Five minutes before bed. The exam is closer than you think.

Screenshots

VHF Trainer Lite4 screens
Sailor's Deck4 screens

Verdict

The call

VHF Trainer Lite and Sailor's Deck both sit at 5.0 stars, but that hides the real split: 100% of Sailor's Deck's written reviews are positive against 50% of VHF Trainer Lite's. VHF Trainer Lite's advantage is in-app purchases (none vs 3) and iOS requirement (7.0 vs 15.1). On price, rating, ratings volume and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sailor's Deck sells 3 one-off in-app purchases. VHF Trainer Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for VHF Trainer Lite against 5.0 for Sailor's Deck. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 50% of VHF Trainer Lite's written reviews are positive against 100% of Sailor's Deck's.

UpkeepUpdate frequency

VHF Trainer Lite ships an update monthly, Sailor's Deck every 3 weeks. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
VHF Trainer Lite versus Sailor's Deck: the parameters behind the verdict, then further details
ParameterVHF Trainer LiteSailor's Deck
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings2 — better1
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS7.0 — better15.1
Further details — not scored
Size471 MB23 MB
Age rating4+4+
DeveloperAdvenio SoftwareVladimir Arefev

Customer experience

VHF Trainer Lite

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Sailor's Deck

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

VHF Trainer Lite

No in-app purchases

3 purchases

Sailor's Deck

One-time3
  • Small Tip$0.99
  • Buy a Coffee$2.99
  • Generous Tip$3.99

Questions

Is VHF Trainer Lite free?
VHF Trainer Lite is free to download, with no in-app purchases.
Is Sailor's Deck free?
Sailor's Deck is free to download, with in-app purchases available.
Which has better reviews, VHF Trainer Lite or Sailor's Deck?
VHF Trainer Lite and Sailor's Deck are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do VHF Trainer Lite or Sailor's Deck have ads?
Neither VHF Trainer Lite nor Sailor's Deck shows ads.
Which is updated more often, VHF Trainer Lite or Sailor's Deck?
VHF Trainer Lite ships an update monthly, and Sailor's Deck every 3 weeks. Most recently, VHF Trainer Lite was updated on November 2, 2026 and Sailor's Deck on November 5, 2026.

Other comparisons