# Felgo 4 QML Dev App vs Coly for Self

The clearest difference is in-app purchases: Felgo 4 QML Dev App at none against Coly for Self's 2. Felgo 4 QML Dev App also leads on iOS requirement (16.0 vs 18.2). Coly for Self's advantage is update cadence (monthly vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Coly for Self sells 2 in-app purchases, starting at $3.99 per month. Felgo 4 QML Dev App asks for nothing beyond the download.

Felgo 4 QML Dev App ships an update every 6 months, Coly for Self monthly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Felgo 4 QML Dev App | Coly for Self |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Size | 132 MB | 46 MB |
| Requires iOS | **16.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [FELGO GmbH](https://appshunter.io/developer/606142210) | [Eray Can Topcu](https://appshunter.io/developer/1859535581) |

## What reviewers say

### Felgo 4 QML Dev App

[App page](https://appshunter.io/ios/app/felgo-4-qml-dev-app/id1669213808)

**Features:** Vision Pro support

**In-app purchases:** none


### Coly for Self

[App page](https://appshunter.io/ios/app/coly-for-self-hosted-servers/id6761507087)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coly Premium Monthly | $3.99 | per month |
| Coly Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Felgo 4 QML Dev App free?

Felgo 4 QML Dev App is free to download, with no in-app purchases.

### Is Coly for Self free?

Coly for Self is free to download, with in-app purchases available.

### Do Felgo 4 QML Dev App or Coly for Self have ads?

Neither Felgo 4 QML Dev App nor Coly for Self shows ads.

### Which is updated more often, Felgo 4 QML Dev App or Coly for Self?

Felgo 4 QML Dev App ships an update every 6 months, and Coly for Self monthly. Most recently, Felgo 4 QML Dev App was updated on October 30, 2026 and Coly for Self 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.*