# ProbabilityPlayer vs サクッと生物(共通テスト対策)1問1答【サクトレ】

The clearest difference is in-app purchases: サクッと生物(共通テスト対策)1問1答【サクトレ】 at none against ProbabilityPlayer's 1. サクッと生物(共通テスト対策)1問1答【サクトレ】 also leads on iOS requirement (12.0 vs 18.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. ProbabilityPlayer sells 1 one-off in-app purchase. サクッと生物(共通テスト対策)1問1答【サクトレ】 asks for nothing beyond the download.

ProbabilityPlayer ships an update monthly, サクッと生物(共通テスト対策)1問1答【サクトレ】 every 3 weeks. The most recent releases landed on September 27, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ProbabilityPlayer | サクッと生物(共通テスト対策)1問1答【サクトレ】 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 56 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Motonari Hibi](https://appshunter.io/developer/386737172) | [DECRYPTION, CO., LTD.](https://appshunter.io/developer/1778172529) |

## 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 |


### サクッと生物(共通テスト対策)1問1答【サクトレ】

[App page](https://appshunter.io/ios/app/11/id6745025239)

Prepare for common university entrance exams in biology with this app's simple, ad-free interface. It offers a Q&A format with explanations, perfect for efficient study during commutes. Track your progress and review incorrect answers to improve your chances of success.

**Highlights:** Ad-free user interface, Q&A format for exam prep, Explanations for answers, Progress tracking for last 3 attempts, Review of incorrect answers, Efficient study for commutes

**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 サクッと生物(共通テスト対策)1問1答【サクトレ】 free?

サクッと生物(共通テスト対策)1問1答【サクトレ】 is free to download, with no in-app purchases.

### Do ProbabilityPlayer or サクッと生物(共通テスト対策)1問1答【サクトレ】 have ads?

Neither ProbabilityPlayer nor サクッと生物(共通テスト対策)1問1答【サクトレ】 shows ads.

### Which is updated more often, ProbabilityPlayer or サクッと生物(共通テスト対策)1問1答【サクトレ】?

ProbabilityPlayer ships an update monthly, and サクッと生物(共通テスト対策)1問1答【サクトレ】 every 3 weeks. Most recently, ProbabilityPlayer was updated on September 27, 2026 and サクッと生物(共通テスト対策)1問1答【サクトレ】 on September 29, 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.*