# 阿謎GO vs CheckGrade

The clearest difference is price: 阿謎GO at Free against CheckGrade's $1.99. 阿謎GO also leads on iOS requirement (15.0 vs 18.6). CheckGrade's advantage is update cadence (every 5 days vs every 4 months). On ads, in-app purchases and device support there is nothing between them.

阿謎GO is free to download; CheckGrade costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

阿謎GO ships an update every 4 months, CheckGrade every 5 days. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 阿謎GO | CheckGrade |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 8 MB | 2 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [National Museum of Natural Science](https://appshunter.io/developer/875202580) | [Shih Yuen Hsiao](https://appshunter.io/developer/1685781048) |

## What reviewers say

### 阿謎GO

[App page](https://appshunter.io/ios/app/go/id6459355056)

Explore exhibits and learn knowledge through interactive puzzles and AR. Choose a character, follow immersive storylines with multiple endings, and collect cards to unlock achievements. Play solo or with friends for a fun, educational experience.

**Highlights:** AR-enhanced real-world puzzles, Immersive storylines with multiple endings, Collectible cards and hidden achievements, Multiplayer and character selection, Game-based learning of exhibit knowledge

**Features:** macOS Compatibility

**In-app purchases:** none


### CheckGrade

[App page](https://appshunter.io/ios/app/checkgrade/id6804614052)

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

**In-app purchases:** none


## Frequently asked questions

### Is 阿謎GO free?

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

### Is CheckGrade free?

CheckGrade costs $1.99, with no in-app purchases.

### Do 阿謎GO or CheckGrade have ads?

Neither 阿謎GO nor CheckGrade shows ads.

### Which is updated more often, 阿謎GO or CheckGrade?

阿謎GO ships an update every 4 months, and CheckGrade every 5 days. Most recently, 阿謎GO was updated on October 30, 2026 and CheckGrade on October 29, 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.*