# Notix vs Octo AI

The clearest difference is update cadence: Octo AI at every 4 days against Notix's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Notix sells 3 in-app purchases, starting at $6.99 per 7 days and Octo AI sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Notix ships an update every 9 days, Octo AI every 4 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Notix | Octo AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Size | 100 MB | 58 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TAHSIN OMER ICURTDAS](https://appshunter.io/developer/1879814043) | [CENGIZHAN ERTURAN](https://appshunter.io/developer/6803370468) |

## What reviewers say

### Notix

[App page](https://appshunter.io/ios/app/notix-ai-study-notes-and-quiz/id6759614614)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Notix AI Pro (Weekly) | $6.99 | per 7 days |
| DeepDigest AI Pro (Monthly) | $13.99 | per month |
| Notix AI Pro (Yearly) | $49.99 | per year |


### 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 Notix free?

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

### Is Octo AI free?

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

### Do Notix or Octo AI have ads?

Neither Notix nor Octo AI shows ads.

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

Notix ships an update every 9 days, and Octo AI every 4 days. Most recently, Notix was updated on October 28, 2026 and Octo AI on October 25, 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.*