# 火星AI vs 理数IQ

The clearest difference is update cadence: 火星AI at every 3 days against 理数IQ's every 5 weeks. 理数IQ's advantage is iOS requirement (14.0 vs 18.0). On price, ads, 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.

火星AI ships an update every 3 days, 理数IQ every 5 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 火星AI | 理数IQ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 weeks |
| Size | 249 MB | 171 MB |
| Requires iOS | 18.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [HK MARZ TECHNOLOGY LIMITED](https://appshunter.io/developer/1726151204) | [Personalized Homehealth Care LLC](https://appshunter.io/developer/6788385040) |

## What reviewers say

### 火星AI

[App page](https://appshunter.io/ios/app/ai/id6773168843)

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

**In-app purchases:** none


### 理数IQ

[App page](https://appshunter.io/ios/app/iq/id6788385038)

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

**In-app purchases:** none


## Frequently asked questions

### Is 火星AI free?

火星AI is free to download, with no in-app purchases.

### Is 理数IQ free?

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

### Do 火星AI or 理数IQ have ads?

Neither 火星AI nor 理数IQ shows ads.

### Which is updated more often, 火星AI or 理数IQ?

火星AI ships an update every 3 days, and 理数IQ every 5 weeks. Most recently, 火星AI was updated on October 13, 2026 and 理数IQ on October 16, 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.*