ProbabilityPlayer vs Aether Morse
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
ProbabilityPlayer
Practice probability problems for the Kyotsu Test, a common Japanese university entrance exam. This app focuses on mathematical probability questions and includes diagrams to aid understanding. It is designed to help students prepare for this specific academic assessment.
- Probability problem practice
- Kyotsu Test focus
- Mathematical probability
- Diagrams included
- University entrance exam prep
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This is an app for Kyotsu Test, the test widely used in Japanese university entrance exams, dealing especially with probability problems in mathematics. I have applied to the rights holder to use the test.
Aether Morse
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Master Morse code with Aether Morse ā the ultimate learning and communication tool for ham radio operators, survivalists, and enthusiasts. LEARN ā¢ Tap-rhythm lessons for letters, numbers, and symbols ā¢ Visual waveform display with real-time signal highlighting ā¢ Track mastery progress for every character ā¢ Adjustable WPM speed from beginner to expert SIGNAL STUDIO ā¢ Type any message and instantly see its Morse waveform ā¢ Decode incoming Morse code by tapping along ā¢ Haptic feedback vibrates each dit and dah FLASHLIGHT ā¢ Send Morse code via your iPhone's LED flash ā¢ Communicate silently over long distances with light HAPTIC MESSENGER ā¢ Feel Morse code through vibration ā truly hands-free ā¢ Perfect for discreet communication All features are free. Remove banner ads for just $0.99.
Screenshots
Verdict
The clearest difference is ads: ProbabilityPlayer at none against Aether Morse's shown. Aether Morse's advantage is update cadence (every 2 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. ProbabilityPlayer sells 1 one-off in-app purchase and Aether Morse sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
ProbabilityPlayer ships an update monthly, Aether Morse every 2 days. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.
| Parameter | ProbabilityPlayer | Aether Morse |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | ā |
| Update frequency | Monthly | Every 2 days ā better |
| Ads | No ā better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | ā |
| Devices | iPhone, iPad ā better | iPhone |
| Requires iOS | 18.0 | 17.0 ā better |
| Further details ā not scored | ||
| Size | 9 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Motonari Hibi | Sui Fai Law |
In-app purchases
ProbabilityPlayer
- Premium$1.99
Aether Morse
- Remove Ads$0.99
Questions
Is ProbabilityPlayer free?
Is Aether Morse free?
Do ProbabilityPlayer or Aether Morse have ads?
Which is updated more often, ProbabilityPlayer or Aether Morse?
Other comparisons
