# IQ Test vs Open MBTI

The clearest difference is update cadence: IQ Test at every 2 days against Open MBTI's every 5 days. IQ Test also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

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

IQ Test ships an update every 2 days, Open MBTI every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | IQ Test | Open MBTI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Size | 50 MB | 12 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Gunawan Santoso](https://appshunter.io/developer/1843786072) | [啸虎 朱](https://appshunter.io/developer/6779842935) |

## What reviewers say

### IQ Test

[App page](https://appshunter.io/ios/app/iq-test-brain-challenge/id6761675199)

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

**In-app purchases:** none


### Open MBTI

[App page](https://appshunter.io/ios/app/open-mbti/id6782008842)

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

**In-app purchases:** none


## Frequently asked questions

### Is IQ Test free?

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

### Is Open MBTI free?

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

### Do IQ Test or Open MBTI have ads?

Neither IQ Test nor Open MBTI shows ads.

### Which is updated more often, IQ Test or Open MBTI?

IQ Test ships an update every 2 days, and Open MBTI every 5 days. Most recently, IQ Test was updated on October 24, 2026 and Open MBTI 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.*