# Zen Slate vs Folio

The clearest difference is update cadence: Zen Slate at every 6 days against Folio's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Zen Slate sells 2 in-app purchases, starting at $19.99 per year and Folio sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Zen Slate ships an update every 6 days, Folio every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Zen Slate | Folio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Size | 23 MB | 44 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [ZenProducts Technologies Pvt. Ltd.](https://appshunter.io/developer/1849997461) | [Dinh Bao Thang Duong](https://appshunter.io/developer/1529449646) |

## What reviewers say

### Zen Slate

[App page](https://appshunter.io/ios/app/zen-slate-notes-and-to-dos/id6754855420)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zen Slate Pro Annual | $19.99 | per year |
| Zen Slate, bought once | $49.99 | one-time |


### 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 |


## Frequently asked questions

### Is Zen Slate free?

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

### Is Folio free?

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

### Do Zen Slate or Folio have ads?

Neither Zen Slate nor Folio shows ads.

### Which is updated more often, Zen Slate or Folio?

Zen Slate ships an update every 6 days, and Folio every 3 weeks. Most recently, Zen Slate was updated on October 25, 2026 and Folio on October 25, 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.*