# ProbabilityPlayer vs morse.tr

The clearest difference is in-app purchases: morse.tr at none against ProbabilityPlayer's 1. morse.tr also leads on iOS requirement (15.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. ProbabilityPlayer sells 1 one-off in-app purchase. morse.tr asks for nothing beyond the download.

## The numbers

| Metric | ProbabilityPlayer | morse.tr |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 38 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Motonari Hibi](https://appshunter.io/developer/386737172) | [Philip Yoon](https://appshunter.io/developer/6778205508) |

## What reviewers say

### ProbabilityPlayer

[App page](https://appshunter.io/ios/app/probabilityplayer/id6737689746)

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.

**Highlights:** Probability problem practice, Kyotsu Test focus, Mathematical probability, Diagrams included, University entrance exam prep

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | one-time |


### morse.tr

[App page](https://appshunter.io/ios/app/morsetr/id6778205506)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ProbabilityPlayer free?

ProbabilityPlayer is free to download, with in-app purchases available.

### Is morse.tr free?

morse.tr is free to download, with no in-app purchases.

### Do ProbabilityPlayer or morse.tr have ads?

Neither ProbabilityPlayer nor morse.tr shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*