# 天文ガイド vs 天文宇宙検定1級 過去問・暗記アプリ

The clearest difference is update cadence: 天文宇宙検定1級 過去問・暗記アプリ at fortnightly against 天文ガイド's every 14 months. 天文ガイド's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 天文ガイド sells 10 in-app purchases, starting at $6.99 per month and 天文宇宙検定1級 過去問・暗記アプリ sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

天文ガイド ships an update every 14 months, 天文宇宙検定1級 過去問・暗記アプリ fortnightly. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 天文ガイド | 天文宇宙検定1級 過去問・暗記アプリ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 14 months | **Fortnightly** |
| Size | 41 MB | 42 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Seibundo Shinkosha Publishing Co., Ltd.](https://appshunter.io/developer/513602721) | [Hajime App Lab](https://appshunter.io/developer/1704838092) |

## What reviewers say

### 天文ガイド

[App page](https://appshunter.io/ios/app/id987344209)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 天文ガイド | $6.99 | per month |
| 天文ガイド | $39.99 | per 6 months |
| 天文ガイド | $79.99 | per year |
| 天文ガイド2016年11月号 | $5.99 | one-time |
| 天文ガイド2016年12月号 | $5.99 | one-time |
| 天文ガイド2019年2月号 | $5.99 | one-time |
| 天文ガイド2019年4月号 | $5.99 | one-time |
| 天文ガイド2019年10月号 | $5.99 | one-time |
| tenmonguide202611 | $6.99 | one-time |
| tenmonguide202610 | $6.99 | one-time |


### 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 天文ガイド free?

天文ガイド is free to download, with in-app purchases available.

### 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 天文ガイド or 天文宇宙検定1級 過去問・暗記アプリ have ads?

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

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

天文ガイド ships an update every 14 months, and 天文宇宙検定1級 過去問・暗記アプリ fortnightly. Most recently, 天文ガイド was updated on November 6, 2026 and 天文宇宙検定1級 過去問・暗記アプリ on November 5, 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.*