# Spatial Ability Assessment vs Hidden Button 2

The clearest difference is ads: Spatial Ability Assessment at none against Hidden Button 2's shown. Spatial Ability Assessment also leads on iOS requirement (10.0 vs 12.0). Hidden Button 2's advantage is update cadence (weekly vs every 12 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Spatial Ability Assessment ships an update every 12 months, Hidden Button 2 weekly. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Spatial Ability Assessment | Hidden Button 2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Weekly** |
| Size | 227 MB | 35 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jon-Chao Hong](https://appshunter.io/developer/547495524) | [Chengdu Yimiao Information Technology Co., Ltd.](https://appshunter.io/developer/1619477257) |

## What reviewers say

### Spatial Ability Assessment

[App page](https://appshunter.io/ios/app/spatial-ability-assessment/id1444258668)

**Features:** macOS Compatibility

**In-app purchases:** none


### Hidden Button 2

[App page](https://appshunter.io/ios/app/hidden-button-2/id1619476895)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spatial Ability Assessment free?

Spatial Ability Assessment is free to download, with no in-app purchases.

### Is Hidden Button 2 free?

Hidden Button 2 is free to download, with no in-app purchases.

### Do Spatial Ability Assessment or Hidden Button 2 have ads?

Hidden Button 2 shows ads; Spatial Ability Assessment does not.

### Which is updated more often, Spatial Ability Assessment or Hidden Button 2?

Spatial Ability Assessment ships an update every 12 months, and Hidden Button 2 weekly. Most recently, Spatial Ability Assessment was updated on October 4, 2026 and Hidden Button 2 on October 6, 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.*