# OwlNote TLDL Notes Feynman AI vs Ohmira

The clearest difference is iOS requirement: OwlNote TLDL Notes Feynman AI at 15.1 against Ohmira's 26.0. 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 Ohmira sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | OwlNote TLDL Notes Feynman AI | Ohmira |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 55 MB | 5 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Olga Krolikowska](https://appshunter.io/developer/1727507942) | [Mewey](https://appshunter.io/developer/530958597) |

## 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 |


### Ohmira

[App page](https://appshunter.io/ios/app/ohmira-circuit-simulator/id6795175136)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ohmira Complete | $8.99 | one-time |


## 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 Ohmira free?

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

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

Neither OwlNote TLDL Notes Feynman AI nor Ohmira shows ads.

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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.*