# SEIRAKU vs 天文宇宙検定1級 過去問・暗記アプリ

The clearest difference is in-app purchases: SEIRAKU at none against 天文宇宙検定1級 過去問・暗記アプリ's 3. SEIRAKU also leads on iOS requirement (13.0 vs 17.0). 天文宇宙検定1級 過去問・暗記アプリ's advantage is update cadence (every 2 weeks vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. 天文宇宙検定1級 過去問・暗記アプリ sells 3 one-off in-app purchases. SEIRAKU asks for nothing beyond the download.

SEIRAKU ships an update monthly, 天文宇宙検定1級 過去問・暗記アプリ every 2 weeks. The most recent releases landed on September 10, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | SEIRAKU | 天文宇宙検定1級 過去問・暗記アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 24 MB | 42 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) | [Hajime App Lab](https://appshunter.io/developer/1704838092) |

## What reviewers say

### SEIRAKU

[App page](https://appshunter.io/ios/app/seiraku/id6760764034)

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

**In-app purchases:** none


### 天文宇宙検定1級 過去問・暗記アプリ

[App page](https://appshunter.io/ios/app/1/id6784950185)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除 | $3.99 | one-time |
| 全問題解放 | $3.99 | one-time |
| 広告削除+全問題解放 | $5.99 | one-time |


## Frequently asked questions

### Is SEIRAKU free?

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

### Is 天文宇宙検定1級 過去問・暗記アプリ free?

天文宇宙検定1級 過去問・暗記アプリ is free to download, with in-app purchases available.

### Do SEIRAKU or 天文宇宙検定1級 過去問・暗記アプリ have ads?

Both SEIRAKU and 天文宇宙検定1級 過去問・暗記アプリ show ads.

### Which is updated more often, SEIRAKU or 天文宇宙検定1級 過去問・暗記アプリ?

SEIRAKU ships an update monthly, and 天文宇宙検定1級 過去問・暗記アプリ every 2 weeks. Most recently, SEIRAKU was updated on September 10, 2026 and 天文宇宙検定1級 過去問・暗記アプリ on September 4, 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.*