# G検定対策アプリ vs Spaceship Earth

The clearest difference is price: Spaceship Earth at Free against G検定対策アプリ's $6.99. Spaceship Earth also leads on update cadence (every 2 months vs every 6 months). G検定対策アプリ's advantage is iOS requirement (11.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Spaceship Earth is free to download; G検定対策アプリ costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

G検定対策アプリ ships an update every 6 months, Spaceship Earth every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | G検定対策アプリ | Spaceship Earth |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 78 MB | 55 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SKILLUP NeXt, Ltd.](https://appshunter.io/developer/1569771970) | [Erevista Inc.](https://appshunter.io/developer/1475885966) |

## What reviewers say

### G検定対策アプリ

[App page](https://appshunter.io/ios/app/g/id1569771968)

This app helps users prepare for the G-Certificate exam by providing practice questions aligned with the latest syllabus. It offers features to track progress, identify strengths and weaknesses, and stay updated on AI news.

**Highlights:** 321 practice questions aligned with the latest syllabus, Identify strengths and weaknesses by category, Visualize learning progress and pace, Review incorrect answers with flags, Stay updated with AI news and blog posts, Offline study capability

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

**In-app purchases:** none


### Spaceship Earth

[App page](https://appshunter.io/ios/app/spaceship-earth-sdgs/id1613446452)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is G検定対策アプリ free?

G検定対策アプリ costs $6.99, with no in-app purchases.

### Is Spaceship Earth free?

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

### Do G検定対策アプリ or Spaceship Earth have ads?

Neither G検定対策アプリ nor Spaceship Earth shows ads.

### Which is updated more often, G検定対策アプリ or Spaceship Earth?

G検定対策アプリ ships an update every 6 months, and Spaceship Earth every 2 months. Most recently, G検定対策アプリ was updated on October 27, 2026 and Spaceship Earth on October 25, 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.*