# 選択サバイバル vs Math Duel

The clearest difference is update cadence: 選択サバイバル at every 6 days against Math Duel's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 選択サバイバル sells 1 one-off in-app purchase and Math Duel sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

選択サバイバル ships an update every 6 days, Math Duel every 4 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | 選択サバイバル | Math Duel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id6468663726/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 67.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 days** | Every 4 weeks |
| Size | 225 MB | 52 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Rikuto Hosaka](https://appshunter.io/developer/1621064356) | [HAO CHANG KUO](https://appshunter.io/developer/1735524069) |

## What reviewers say

### 選択サバイバル

[App page](https://appshunter.io/ios/app/id6468663726)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $1.99 | one-time |

**What reviewers like**

- 👍 Interesting story content
- 👍 High immersion/realism
- 👍 Easy to play/simple controls
- 👍 Good graphics/visual quality
- 👍 Fun/entertaining

**What reviewers complain about**

- 広告 Too many ads
- 👎 Repetitive gameplay
- 👎 Lack of story depth
- 👎 Unpleasant AI voice/images
- 👎 Game feels unfinished/lack of updates

**Reported bugs**

- Frequent bugs returning to story selection screen
- Typos and grammatical errors in text
- Sudden return to story selection screen
- Some stages are missing

**Requested features**

- Add more stories/stages
- Add branching storylines
- Improve AI voice and images
- Fix bugs and typos
- Increase originality of stories


### Math Duel

[App page](https://appshunter.io/ios/app/math-duel-mental-math-battle/id6770234325)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Energy Potion Pack | $0.99 | one-time |
| Basic Tool Pack | $0.99 | one-time |
| Advanced Pass Upgrade | $0.99 | one-time |
| Starter Pack | $1.99 | one-time |
| Standard Pass | $2.99 | one-time |
| Advanced Pass | $3.99 | one-time |


## Frequently asked questions

### Is 選択サバイバル free?

選択サバイバル is free to download, with in-app purchases available.

### Is Math Duel free?

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

### Do 選択サバイバル or Math Duel have ads?

Both 選択サバイバル and Math Duel show ads.

### Which is updated more often, 選択サバイバル or Math Duel?

選択サバイバル ships an update every 6 days, and Math Duel every 4 weeks. Most recently, 選択サバイバル was updated on October 24, 2026 and Math Duel on October 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.*