# Math Practice vs Ders Fido

Math Practice and Ders Fido are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Math Practice | Ders Fido |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 106 MB | 24 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [彩月 姚](https://appshunter.io/developer/6806793776) | [Nurullah Tureyen](https://appshunter.io/developer/1883552520) |

## What reviewers say

### Math Practice

[App page](https://appshunter.io/ios/app/math-practice-mental-math/id6809700734)

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

**In-app purchases:** none


### Ders Fido

[App page](https://appshunter.io/ios/app/ders-fido/id6814511219)

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Practice free?

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

### Is Ders Fido free?

Ders Fido is free to download, with no in-app purchases.

### Do Math Practice or Ders Fido have ads?

Neither Math Practice nor Ders Fido shows ads.

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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.*