# Math Expert Lite vs Robot Emil 4

The clearest difference is update cadence: Math Expert Lite at every 5 months against Robot Emil 4's every 14 months. Robot Emil 4's advantage is iOS requirement (9.0 vs 12.0). 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.

Math Expert Lite ships an update every 5 months, Robot Emil 4 every 14 months. Both last shipped on October 10, 2026.

## The numbers

| Metric | Math Expert Lite | Robot Emil 4 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 14 months |
| Size | 11 MB | 131 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Markus Ide](https://appshunter.io/developer/625191124) | [Indicia, s.r.o.](https://appshunter.io/developer/1517645365) |

## What reviewers say

### Math Expert Lite

[App page](https://appshunter.io/ios/app/math-expert-lite/id981276547)

**Features:** macOS Compatibility

**In-app purchases:** none


### Robot Emil 4

[App page](https://appshunter.io/ios/app/robot-emil-4/id1519750971)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math Expert Lite free?

Math Expert Lite is free to download, with no in-app purchases.

### Is Robot Emil 4 free?

Robot Emil 4 is free to download, with no in-app purchases.

### Do Math Expert Lite or Robot Emil 4 have ads?

Neither Math Expert Lite nor Robot Emil 4 shows ads.

### Which is updated more often, Math Expert Lite or Robot Emil 4?

Math Expert Lite ships an update every 5 months, and Robot Emil 4 every 14 months. Most recently, Math Expert Lite was updated on October 10, 2026 and Robot Emil 4 on October 10, 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.*