# OwlNote TLDL Notes Feynman AI vs Owler

The clearest difference is in-app purchases: Owler at none against OwlNote TLDL Notes Feynman AI's 3. Owler also leads on update cadence (every 9 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OwlNote TLDL Notes Feynman AI sells 3 in-app purchases, starting at $3.99 per 7 days. Owler asks for nothing beyond the download.

OwlNote TLDL Notes Feynman AI ships an update every 2 months, Owler every 9 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | OwlNote TLDL Notes Feynman AI | Owler |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 55 MB | 46 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Olga Krolikowska](https://appshunter.io/developer/1727507942) | [owler Sp. z o.o.](https://appshunter.io/developer/1890111747) |

## What reviewers say

### OwlNote TLDL Notes Feynman AI

[App page](https://appshunter.io/ios/app/owlnote-tldl-notes-feynman-ai/id6746122376)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Monthly | $7.99 | per month |
| Yearly | $24.99 | per year |


### Owler

[App page](https://appshunter.io/ios/app/owler/id6761518469)

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

**In-app purchases:** none


## Frequently asked questions

### Is OwlNote TLDL Notes Feynman AI free?

OwlNote TLDL Notes Feynman AI is free to download, with in-app purchases available.

### Is Owler free?

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

### Do OwlNote TLDL Notes Feynman AI or Owler have ads?

Neither OwlNote TLDL Notes Feynman AI nor Owler shows ads.

### Which is updated more often, OwlNote TLDL Notes Feynman AI or Owler?

OwlNote TLDL Notes Feynman AI ships an update every 2 months, and Owler every 9 days. Most recently, OwlNote TLDL Notes Feynman AI was updated on October 28, 2026 and Owler on October 28, 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.*