# Felgo 4 QML Dev App vs Vision Detector

The clearest difference is update cadence: Vision Detector at every 10 days against Felgo 4 QML Dev App's every 6 months. Felgo 4 QML Dev App's advantage is iOS requirement (16.0 vs 18.2). 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.

Felgo 4 QML Dev App ships an update every 6 months, Vision Detector every 10 days. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Felgo 4 QML Dev App | Vision Detector |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 132 MB | 1 MB |
| Requires iOS | **16.0** | 18.2 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [FELGO GmbH](https://appshunter.io/developer/606142210) | [Kazufumi Suzuki](https://appshunter.io/developer/1512087197) |

## 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


### Vision Detector

[App page](https://appshunter.io/ios/app/vision-detector/id6443729650)

Easily test and evaluate Core ML models on your iPhone or iPad. Load your own models from various cloud services or local storage and run them using live camera feed or stored images. Supports image classification, object detection, and style transfer.

**Highlights:** Run Core ML models on device, Load models from cloud storage, Live camera feed inference, Image classification support, Object detection support, Style transfer support

**Features:** Vision Pro support

**In-app purchases:** none


## 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 Vision Detector free?

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

### Do Felgo 4 QML Dev App or Vision Detector have ads?

Neither Felgo 4 QML Dev App nor Vision Detector shows ads.

### Which is updated more often, Felgo 4 QML Dev App or Vision Detector?

Felgo 4 QML Dev App ships an update every 6 months, and Vision Detector every 10 days. Most recently, Felgo 4 QML Dev App was updated on September 22, 2026 and Vision Detector on September 21, 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.*