# ProbabilityPlayer vs アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題

The clearest difference is ads: ProbabilityPlayer at none against アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題's shown. アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題's advantage is update cadence (every 8 days vs monthly) and iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. ProbabilityPlayer sells 1 one-off in-app purchase and アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題 sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ProbabilityPlayer ships an update monthly, アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題 every 8 days. Both last shipped on October 13, 2026.

## The numbers

| Metric | ProbabilityPlayer | アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 44 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) | [Himeka Saito](https://appshunter.io/developer/6819685777) |

## 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 |


### アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題

[App page](https://appshunter.io/ios/app/id6811580899)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全解放へアップグレード | $0.99 | one-time |
| 地学基礎パック | $1.99 | one-time |
| 全問解放（地学基礎＋地学） | $2.99 | one-time |
| 地学 予想問題 第2〜5回 | $2.99 | one-time |
| 地学基礎 予想問題 第2〜5回 | $2.99 | one-time |


## Frequently asked questions

### Is ProbabilityPlayer free?

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

### Is アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題 free?

アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題 is free to download, with in-app purchases available.

### Do ProbabilityPlayer or アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題 have ads?

アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題 shows ads; ProbabilityPlayer does not.

### Which is updated more often, ProbabilityPlayer or アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題?

ProbabilityPlayer ships an update monthly, and アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題 every 8 days. Most recently, ProbabilityPlayer was updated on October 13, 2026 and アプ問 地学/地学基礎 | 共通テスト 一問一答・予想問題 on October 13, 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.*