Comparison

Master vs Kosmosas

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

Head to head
About

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.

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
Read 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.

About

Kosmosas

Features
Read full description

Space has always been a subject that has attracted both ordinary people and scientists seeking a deeper understanding of the vastness of the cosmos. The year 2021 was a special year for Lithuania as we finally became an Associate Member of the European Space Agency. This is the right time to give the space theme an extra focus: to link and highlight Lithuania's achievements in space technology, to showcase related research centres and to showcase the contributions of scientists of Lithuanian origin, which are mostly unknown to the general public. The second piece of the space puzzle is the Molėtai Museum of Ethnocosmology, the only one of its kind in the world, which is located not far from Vilnius. The essence of the museum is the relationship between man and mankind and the cosmic world. The third element of this mobile application is the archaeological, historical, and natural sites all over Lithuania, which are related to cosmology, the cosmos and its observation. The aim of the app is to combine all these different and closely related topics into one modern tourism and educational tool, which will allow the user to get to know the topic from its various sides. The app contains information on 20 different thematic destinations, but the full content can only be accessed by going to the location of the site, finding the site marker and scanning it. Once you've checked it out, you'll be able to see and hear interesting additional information in 2D, 3D, 360, video, audio, and photo formats. The application is formatted with augmented reality technology. Augmented reality allows you to extend the boundaries of the physical world by projecting and overlaying digital content onto the physical environment you are observing. The project was implemented by: Lithuanian Museum of Ethnocosmology. Project was part-financed by: Lithuanian Council for Culture and others.

Screenshots

Master4 screens
Kosmosas1 screens

Verdict

The call

The clearest difference is price: Kosmosas at Free against Master's $1.99. Kosmosas also leads on iOS requirement (11.0 vs 15.0). On ads, in-app purchases and device support 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

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

Scorecard2 real differences · 8 level
Master versus Kosmosas: the parameters behind the verdict, then further details
ParameterMasterKosmosas
Price$1.99Free — better
Rating4.7 (94 ratings) — better—
Positive reviews96.9% of reviews—
Number of ratings94 — better—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.011.0 — better
Further details — not scored
Size117 MB245 MB
Age rating4+4+
DeveloperPeterjohn ChisholmTadas Ziziunas

In-app purchases

None

Master

No in-app purchases

None

Kosmosas

No in-app purchases

Questions

Is Master free?
Master costs $1.99, with no in-app purchases.
Is Kosmosas free?
Kosmosas is free to download, with no in-app purchases.
Do Master or Kosmosas have ads?
Neither Master nor Kosmosas shows ads.

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