# ML Trainer vs Foxglove WebSocket Bridge

The clearest difference is price: Foxglove WebSocket Bridge at Free against ML Trainer's $0.99. Foxglove WebSocket Bridge also leads on update cadence (monthly vs every 55 months). ML Trainer's advantage is iOS requirement (14.0 vs 16.0). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Foxglove WebSocket Bridge is free to download; ML Trainer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for ML Trainer against 5.0 for Foxglove WebSocket Bridge. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

ML Trainer ships an update every 55 months, Foxglove WebSocket Bridge monthly. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | ML Trainer | Foxglove WebSocket Bridge |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/ml-trainer-make-training-data/id1573622903/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/foxglove-websocket-bridge/id1673592198/reviews) |
| Number of ratings | 2 | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 55 months | **Monthly** |
| Monetization | Paid | **Free** |
| Size | 9 MB | 4 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Casey Pollock](https://appshunter.io/developer/991679552) | [Foxglove](https://appshunter.io/developer/1673592200) |

## What reviewers say

### ML Trainer

[App page](https://appshunter.io/ios/app/ml-trainer-make-training-data/id1573622903)

Easily create training data for machine learning image classification models. Capture thousands of images with adjustable settings for speed and accuracy, then export them for use with popular development tools.

**Highlights:** Capture images for ML training data, Adjustable scan speed and frame count, Low light enhancement with flashlight, Export images to Photos app, Compatibility with CreateML, TensorFlow, Azure ML, Accuracy aids like crosshairs and guides

**Features:** Vision Pro support

**In-app purchases:** none


### Foxglove WebSocket Bridge

[App page](https://appshunter.io/ios/app/foxglove-websocket-bridge/id1673592198)

Stream robotics and sensor data from your iOS device directly to Foxglove Studio. This application serves as a demonstration, providing libraries and examples to help developers build their own custom servers for real-time data visualization.

**Highlights:** Stream sensor data from iOS, Integrates with Foxglove Studio, Demonstrates WebSocket Protocol, Provides libraries and examples, Open-source code available

**Features:** iMessage stickers, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ML Trainer free?

ML Trainer costs $0.99, with no in-app purchases.

### Is Foxglove WebSocket Bridge free?

Foxglove WebSocket Bridge is free to download, with no in-app purchases.

### Which has better reviews, ML Trainer or Foxglove WebSocket Bridge?

ML Trainer and Foxglove WebSocket Bridge are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do ML Trainer or Foxglove WebSocket Bridge have ads?

Neither ML Trainer nor Foxglove WebSocket Bridge shows ads.

### Which is updated more often, ML Trainer or Foxglove WebSocket Bridge?

ML Trainer ships an update every 55 months, and Foxglove WebSocket Bridge monthly. Most recently, ML Trainer was updated on September 21, 2026 and Foxglove WebSocket Bridge on September 9, 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.*