# Folio vs PureOpen

The clearest difference is in-app purchases: PureOpen at none against Folio's 1. PureOpen also leads on update cadence (weekly vs every 3 weeks) and device support (4 vs 2). On price and ads there is nothing between them.

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

Folio ships an update every 3 weeks, PureOpen weekly. The most recent releases landed on September 11, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Folio | PureOpen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 44 MB | 5 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, Mac | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Dinh Bao Thang Duong](https://appshunter.io/developer/1529449646) | [Yechiel Ben David](https://appshunter.io/developer/1863307655) |

## What reviewers say

### Folio

[App page](https://appshunter.io/ios/app/folio-markdown-library/id6765871325)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime | $9.99 | one-time |


### PureOpen

[App page](https://appshunter.io/ios/app/pureopen-markdown-editor/id6800787472)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Folio free?

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

### Is PureOpen free?

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

### Do Folio or PureOpen have ads?

Neither Folio nor PureOpen shows ads.

### Which is updated more often, Folio or PureOpen?

Folio ships an update every 3 weeks, and PureOpen weekly. Most recently, Folio was updated on September 11, 2026 and PureOpen on September 23, 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.*