# OwlNote TLDL Notes Feynman AI vs Learn by Teaching

The clearest difference is update cadence: Learn by Teaching at every 2 weeks against OwlNote TLDL Notes Feynman AI's every 2 months. OwlNote TLDL Notes Feynman AI's advantage is iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support 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 and Learn by Teaching sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

OwlNote TLDL Notes Feynman AI ships an update every 2 months, Learn by Teaching every 2 weeks. The most recent releases landed on September 20, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | OwlNote TLDL Notes Feynman AI | Learn by Teaching |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 55 MB | 17 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Olga Krolikowska](https://appshunter.io/developer/1727507942) | [HUSNU CAN INANC](https://appshunter.io/developer/1858352600) |

## 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 |


### Learn by Teaching

[App page](https://appshunter.io/ios/app/learn-by-teaching-explain2win/id6756080043)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $19.99 | per year |


## 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 Learn by Teaching free?

Learn by Teaching is free to download, with in-app purchases available.

### Do OwlNote TLDL Notes Feynman AI or Learn by Teaching have ads?

Neither OwlNote TLDL Notes Feynman AI nor Learn by Teaching shows ads.

### Which is updated more often, OwlNote TLDL Notes Feynman AI or Learn by Teaching?

OwlNote TLDL Notes Feynman AI ships an update every 2 months, and Learn by Teaching every 2 weeks. Most recently, OwlNote TLDL Notes Feynman AI was updated on September 20, 2026 and Learn by Teaching on September 12, 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.*