# Metis vs Arky

The clearest difference is in-app purchases: Arky at none against Metis's 1. Arky also leads on iOS requirement (16.4 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Metis sells 1 one-off in-app purchase. Arky asks for nothing beyond the download.

## The numbers

| Metric | Metis | Arky |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 16 MB | 40 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Burlac Mihail](https://appshunter.io/developer/1895471114) | [Arky](https://appshunter.io/developer/6798485173) |

## What reviewers say

### Metis

[App page](https://appshunter.io/ios/app/metis-markdown-notes/id6785268461)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Metis Pro | $19.99 | one-time |


### Arky

[App page](https://appshunter.io/ios/app/arky-your-knowledge-canvas/id6798485171)

**In-app purchases:** none


## Frequently asked questions

### Is Metis free?

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

### Is Arky free?

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

### Do Metis or Arky have ads?

Neither Metis nor Arky 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.*