# ML Trainer vs Photo Compression

The clearest difference is price: Photo Compression at Free against ML Trainer's $0.99. Photo Compression also leads on update cadence (fortnightly vs every 55 months) and ratings volume (6 vs 2). ML Trainer's advantage is rating (5.0 vs 4.3) and in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Photo Compression is free to download; ML Trainer costs $0.99 up front. Photo Compression sells 2 in-app purchases, starting at $2.99 per month. ML Trainer asks for nothing beyond the download.

ML Trainer holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 2 and 6 respectively.

ML Trainer ships an update every 55 months, Photo Compression fortnightly. Both last shipped on October 8, 2026.

## The numbers

| Metric | ML Trainer | Photo Compression |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ml-trainer-make-training-data/id1573622903/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/photo-compression/id1639401726/reviews) |
| Number of ratings | 2 | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 55 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 9 MB | 53 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Casey Pollock](https://appshunter.io/developer/991679552) | [Asad Jamal](https://appshunter.io/developer/1630521997) |

## 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


### Photo Compression

[App page](https://appshunter.io/ios/app/photo-compression/id1639401726)

Easily resize and compress your photos to save space on your device. This tool offers user-friendly design and multiple compression options, allowing you to download resized images and crop pictures.

**Highlights:** Resize and compress photos, Multiple compression sizes (small, large, medium), Crop pictures, User-friendly design, Save space on iPhone/iPad, Download resized images

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Compresso Annual | $8.49 | per year |


## Frequently asked questions

### Is ML Trainer free?

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

### Is Photo Compression free?

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

### Which has better reviews, ML Trainer or Photo Compression?

ML Trainer is rated higher. ML Trainer averages 5.0 out of 5 from 2 ratings, while Photo Compression averages 4.3 from 6 ratings.

### Do ML Trainer or Photo Compression have ads?

Neither ML Trainer nor Photo Compression shows ads.

### Which is updated more often, ML Trainer or Photo Compression?

ML Trainer ships an update every 55 months, and Photo Compression fortnightly. Most recently, ML Trainer was updated on October 8, 2026 and Photo Compression on October 8, 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.*