# ReasonML vs Photo Compression

The clearest difference is rating: ReasonML at 5.0 against Photo Compression's 4.3. ReasonML also leads on in-app purchases (none vs 2) and update cadence (every 2 days vs fortnightly). Photo Compression's advantage is chart position (#136 vs unranked). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Photo Compression sells 2 in-app purchases, starting at $2.99 per month. ReasonML asks for nothing beyond the download.

ReasonML holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 6 respectively.

ReasonML ships an update every 2 days, Photo Compression fortnightly. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | ReasonML | Photo Compression |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/reasonml/id1507769834/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/photo-compression/id1639401726/reviews) |
| Number of ratings | 3 | **6** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#136** |
| Size | 8 MB | 53 MB |
| Requires iOS | **13.4** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Jacob Parker](https://appshunter.io/developer/1153284524) | [Asad Jamal](https://appshunter.io/developer/1630521997) |

## What reviewers say

### ReasonML

[App page](https://appshunter.io/ios/app/reasonml/id1507769834)

This app serves as a playground for ReasonML, allowing users to convert code between ReasonML and OCaml. It also compiles code to JavaScript and displays the JS console output directly within the application.

**Highlights:** ReasonML to OCaml conversion, OCaml to ReasonML conversion, Compile to JavaScript, View JS console output

**Features:** Vision Pro support

**In-app purchases:** none


### Photo Compression

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

**Currently charting:** #136 Top Grossing · Developer Tools (US App Store)

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 ReasonML free?

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

### Is Photo Compression free?

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

### Which has better reviews, ReasonML or Photo Compression?

ReasonML is rated higher. ReasonML averages 5.0 out of 5 from 3 ratings, while Photo Compression averages 4.3 from 6 ratings.

### Do ReasonML or Photo Compression have ads?

Neither ReasonML nor Photo Compression shows ads.

### Which is updated more often, ReasonML or Photo Compression?

ReasonML ships an update every 2 days, and Photo Compression fortnightly. Most recently, ReasonML was updated on September 20, 2026 and Photo Compression 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.*