# syntheticdocs vs Hjarni Notes

The clearest difference is device support: Hjarni Notes at 2 against syntheticdocs's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | syntheticdocs | Hjarni Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hjarni-notes-ai-memory/id6761733903/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 4 days |
| Monetization | — | Freemium |
| Size | 24 MB | 4 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Serendipity AI Limited](https://appshunter.io/developer/1441974454) | [evert van den bruel](https://appshunter.io/developer/1054483967) |

## What reviewers say

### syntheticdocs

[App page](https://appshunter.io/ios/app/syntheticdocs/id6478117546)

**In-app purchases:** none


### Hjarni Notes

[App page](https://appshunter.io/ios/app/hjarni-notes-ai-memory/id6761733903)

This app acts as a persistent memory for AI assistants, allowing you to write notes once and have them accessible across different AI models. It organizes information in plain Markdown, supports team collaboration, and lets you control AI instructions.

**Highlights:** Persistent AI memory, Markdown knowledge base, Team collaboration, Customizable AI instructions, Plain text notes, Versioned note history

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

**In-app purchases:** none


## Frequently asked questions

### Is syntheticdocs free?

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

### Is Hjarni Notes free?

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

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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.*