# DERS vs Kunduz KAI

The clearest difference is iOS requirement: DERS at 13.0 against Kunduz KAI's 15.1. 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.

## The numbers

| Metric | DERS | Kunduz KAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Size | 129 MB | 56 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Parantez Teknoloji](https://appshunter.io/developer/1077669139) | [Sıfır Beş Eğitim Teknolojileri](https://appshunter.io/developer/1371646946) |

## What reviewers say

### DERS

[App page](https://appshunter.io/ios/app/ders/id1535336532)

**In-app purchases:** none


### Kunduz KAI

[App page](https://appshunter.io/ios/app/kunduz-kai-ai-study-tutor/id6772543947)

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

**In-app purchases:** none


## Frequently asked questions

### Is DERS free?

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

### Is Kunduz KAI free?

Kunduz KAI is free to download, with no in-app purchases.

### Do DERS or Kunduz KAI have ads?

Neither DERS nor Kunduz KAI shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*