Comparison

AIR & SPACE vs Diving Rules

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

Head to head
About

AIR & SPACE

Features
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Discover the history of space exploration with the help of the NASA Image and Video Library, Astronomy Picture of the Day (APOD - is a website provided by NASA and Michigan Technological University), NASA's Open Data Portal, Launch Library and OpenSky Network API (flight radar). - Greatest moments of the 65 space age; - NASA - Human Spaceflight: 1. Project Mercury; 2. The Gemini Program; 3. The Apollo Program; 4. Skylab; 5. Apollo Soyuz Test Project; 6. The Space Shuttle Missions List; 7. The Shuttle-Mir Program; 8. NASA astronauts; 9. Extra-vehicular Activity (EVA); 10. Unmanned NASA missions; - The Space Race; - Cold War Timeline; - List of upcoming rocket launches to space; - Dr. Wernher von Braun; - Cargo space vehicles; - The most powerful rockets; - International Space Station; - International Space Station Current Location (+ ISS Flight Tracker); - Air Shows Calendar (USA, Canada); - Where to see retired spacecrafts; - NASA Centers and Facilities; - List of aerospace museums (USA, United Kingdom, Canada, Countries of the European Union); - List of rocket launch sites; - A collection of NASA research aircraft; - The solar system; - The Best Places for Plane Spotting (USA, Canada, United Kingdom, Countries of the European Union); - List of airports (USA: large and medium);ย  - List of seaplane bases (USA);ย  - Balloon ports (USA); - Where to See Concorde; - Air Force Bases - Locations (USA); - The biggest Naval Bases in the US; - List of Airlines with liveries; - List of aircraft manufacturers, - List of all Airbus A380 and Boeing 747 Routes and Fleets; - How to Identify a Boeing from an Airbus; - Best Spaceflight and Space History Books; - 11 must-see space movies for anyone serious about space; - List of Astronauts,ย  - List of human spaceflights; - Aircraft detection; - Flight radar based on OpenSky Network API. All of them are available here in this mobile application. Save in your album the pictures you like.

About

Diving Rules

Features
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A mobile app to learn and train on the World Aquatics Diving Rules. If you are a Diving judge, a future diving judge or just a diver, this app is made for you. It holds the reference rule book and allows you to train on the penalties associated to the Referee or the Execution or Synchro Judges.

Screenshots

AIR & SPACE4 screens
Diving Rules4 screens

Verdict

The call

The clearest difference is price: Diving Rules at Free against AIR & SPACE's $3.99. AIR & SPACE's advantage is update cadence (every 9 days vs every 6 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Diving Rules is free to download; AIR & SPACE costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AIR & SPACE ships an update every 9 days, Diving Rules every 6 months. The most recent releases landed on September 8, 2026 and September 13, 2026 respectively.

Scorecard2 real differences ยท 4 level
AIR & SPACE versus Diving Rules: the parameters behind the verdict, then further details
ParameterAIR & SPACEDiving Rules
Price$3.99Free โ€” better
Update frequencyEvery 9 days โ€” betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS13.013.0
Further details โ€” not scored
Size96 MB35 MB
Age rating4+4+
DeveloperSergey SavitskiyBenoit Suzanne

In-app purchases

None

AIR & SPACE

No in-app purchases

None

Diving Rules

No in-app purchases

Questions

Is AIR & SPACE free?
AIR & SPACE costs $3.99, with no in-app purchases.
Is Diving Rules free?
Diving Rules is free to download, with no in-app purchases.
Do AIR & SPACE or Diving Rules have ads?
Neither AIR & SPACE nor Diving Rules shows ads.
Which is updated more often, AIR & SPACE or Diving Rules?
AIR & SPACE ships an update every 9 days, and Diving Rules every 6 months. Most recently, AIR & SPACE was updated on September 8, 2026 and Diving Rules on September 13, 2026.

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