# String Theory! vs My Notes & Cards

The clearest difference is ads: My Notes & Cards at none against String Theory!'s shown. String Theory!'s advantage is iOS requirement (15.1 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. String Theory! sells 3 in-app purchases, starting at $2.99 per 7 days and My Notes & Cards sells 2 in-app purchases, starting at $1.29 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | String Theory! | My Notes & Cards |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/my-notes-and-cards/id6766078376/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 56 MB | 6 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Synthify Inc](https://appshunter.io/developer/1089257745) | [Myworkingmemory LLC](https://appshunter.io/developer/1892099684) |

## What reviewers say

### String Theory!

[App page](https://appshunter.io/ios/app/string-theory/id6757779491)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $24.99 | per year |
| One Time | $29.99 | one-time |


### My Notes & Cards

[App page](https://appshunter.io/ios/app/my-notes-and-cards/id6766078376)

Organize your thoughts into structured sections with self-contained cards. Add photos, sketches, and locations to your notes. Enjoy a private, local experience without AI or cloud syncing.

**Highlights:** Organize thoughts into sections and cards, Add photos and sketches to cards, Attach locations to cards, Universal keyword search, Drag-and-drop reordering, Local privacy, no cloud sync, Native iOS experience

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| My Notes & Cards Monthly | $1.29 | per month |
| Pricing | $6.00 | per year |


## Frequently asked questions

### Is String Theory! free?

String Theory! is free to download, with in-app purchases available.

### Is My Notes & Cards free?

My Notes & Cards is free to download, with in-app purchases available.

### Do String Theory! or My Notes & Cards have ads?

String Theory! shows ads; My Notes & Cards does not.

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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.*