# Erlkönig vs Write On! Studio

The clearest difference is update cadence: Write On! Studio at every 4 days against Erlkönig's every 53 months. Erlkönig's advantage is iOS requirement (12.4 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Erlkönig ships an update every 53 months, Write On! Studio every 4 days. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Erlkönig | Write On! Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 53 months | **Every 4 days** |
| Size | 10 MB | 36 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ignacio Martin Latorre](https://appshunter.io/developer/857749453) | [Dawn Rice](https://appshunter.io/developer/1896538772) |

## What reviewers say

### Erlkönig

[App page](https://appshunter.io/ios/app/erlkonig/id1451457442)

**Features:** macOS Compatibility

**In-app purchases:** none


### Write On! Studio

[App page](https://appshunter.io/ios/app/write-on-studio/id6768098075)

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

**In-app purchases:** none


## Frequently asked questions

### Is Erlkönig free?

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

### Is Write On! Studio free?

Write On! Studio is free to download, with no in-app purchases.

### Do Erlkönig or Write On! Studio have ads?

Neither Erlkönig nor Write On! Studio shows ads.

### Which is updated more often, Erlkönig or Write On! Studio?

Erlkönig ships an update every 53 months, and Write On! Studio every 4 days. Most recently, Erlkönig was updated on October 12, 2026 and Write On! Studio on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*