# DERS vs Octo AI

The clearest difference is in-app purchases: DERS at none against Octo AI's 2. DERS also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Octo AI sells 2 in-app purchases, starting at $4.99 per 7 days. DERS asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 3, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | DERS | Octo AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Size | 129 MB | 58 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Parantez Teknoloji](https://appshunter.io/developer/1077669139) | [CENGIZHAN ERTURAN](https://appshunter.io/developer/6803370468) |

## What reviewers say

### DERS

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

**In-app purchases:** none


### Octo AI

[App page](https://appshunter.io/ios/app/octo-ai-video-problem-solver/id6803370466)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Octo AI Pro - Weekly | $4.99 | per 7 days |
| Octo AI Pro - Monthly | $12.99 | per month |


## Frequently asked questions

### Is DERS free?

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

### Is Octo AI free?

Octo AI is free to download, with in-app purchases available.

### Do DERS or Octo AI have ads?

Neither DERS nor Octo AI shows ads.

### Which is updated more often, DERS or Octo AI?

DERS ships an update every 4 days, and Octo AI every 4 days. Most recently, DERS was updated on October 3, 2026 and Octo AI on October 19, 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.*