# ProbabilityPlayer vs 再開スイッチ

The clearest difference is in-app purchases: 再開スイッチ at none against ProbabilityPlayer's 1. ProbabilityPlayer's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. ProbabilityPlayer sells 1 one-off in-app purchase. 再開スイッチ asks for nothing beyond the download.

ProbabilityPlayer ships an update monthly, 再開スイッチ every 2 months. The most recent releases landed on September 27, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | ProbabilityPlayer | 再開スイッチ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 22 MB |
| Requires iOS | **18.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Motonari Hibi](https://appshunter.io/developer/386737172) | [sho tsugawa](https://appshunter.io/developer/1757370725) |

## 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 |


### 再開スイッチ

[App page](https://appshunter.io/ios/app/id6758904017)

**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 再開スイッチ free?

再開スイッチ is free to download, with no in-app purchases.

### Do ProbabilityPlayer or 再開スイッチ have ads?

再開スイッチ shows ads; ProbabilityPlayer does not.

### Which is updated more often, ProbabilityPlayer or 再開スイッチ?

ProbabilityPlayer ships an update monthly, and 再開スイッチ every 2 months. Most recently, ProbabilityPlayer was updated on September 27, 2026 and 再開スイッチ on September 24, 2026.

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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.*