# DATARAKU vs 大人の全国模試

The clearest difference is in-app purchases: DATARAKU at none against 大人の全国模試's 3. 大人の全国模試's advantage is update cadence (every 5 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 大人の全国模試 sells 3 in-app purchases, starting at $3.99 per month. DATARAKU asks for nothing beyond the download.

DATARAKU ships an update every 2 months, 大人の全国模試 every 5 days. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | DATARAKU | 大人の全国模試 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Size | 7 MB | 52 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) | [Fumihiro Kawasaki](https://appshunter.io/developer/1246668885) |

## What reviewers say

### DATARAKU

[App page](https://appshunter.io/ios/app/dataraku-data-structures/id6775173817)

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

**In-app purchases:** none


### 大人の全国模試

[App page](https://appshunter.io/ios/app/id6788660627)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| モシパス（月額） | $3.99 | per month |
| モシパス（年額） | $29.99 | per year |
| 追試チケット | $0.99 | one-time |


## Frequently asked questions

### Is DATARAKU free?

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

### Is 大人の全国模試 free?

大人の全国模試 is free to download, with in-app purchases available.

### Do DATARAKU or 大人の全国模試 have ads?

Both DATARAKU and 大人の全国模試 show ads.

### Which is updated more often, DATARAKU or 大人の全国模試?

DATARAKU ships an update every 2 months, and 大人の全国模試 every 5 days. Most recently, DATARAKU was updated on October 24, 2026 and 大人の全国模試 on October 20, 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.*