# PSi4 Mobile vs Image Compressor ™

The clearest difference is in-app purchases: PSi4 Mobile at none against Image Compressor ™'s 4. PSi4 Mobile also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Image Compressor ™ sells 4 in-app purchases, starting at $1.99 per 7 days. PSi4 Mobile asks for nothing beyond the download.

PSi4 Mobile ships an update every 3 months, Image Compressor ™ every 5 months. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | PSi4 Mobile | Image Compressor ™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (53 ratings)](https://appshunter.io/ios/app/image-compressor/id6599837807/reviews)** |
| Number of ratings | — | **53** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 33 MB | 13 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marcelo Hernandes](https://appshunter.io/developer/1687340944) | [Andy Sutanto](https://appshunter.io/developer/1659282966) |

## What reviewers say

### PSi4 Mobile

[App page](https://appshunter.io/ios/app/psi4-mobile/id6448998238)

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

**In-app purchases:** none


### Image Compressor ™

[App page](https://appshunter.io/ios/app/image-compressor/id6599837807)

Easily reduce the file size of your photos and documents while preserving high quality. Select images from various sources, adjust compression levels, and preview before saving or sharing.

**Highlights:** High-quality compression, Multiple image sources, Batch processing, Adjustable compression levels, Preview before saving, Save and share options, Compression history

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Photo Compressor Pro | $1.99 | per 7 days |
| Compress Photos Pro - 1Y | $19.99 | per year |
| Offering for New User | $19.99 | one-time |
| Image Compressor Pro | $39.99 | one-time |


## Frequently asked questions

### Is PSi4 Mobile free?

PSi4 Mobile is free to download, with no in-app purchases.

### Is Image Compressor ™ free?

Image Compressor ™ is free to download, with in-app purchases available.

### Do PSi4 Mobile or Image Compressor ™ have ads?

Image Compressor ™ shows ads; PSi4 Mobile does not.

### Which is updated more often, PSi4 Mobile or Image Compressor ™?

PSi4 Mobile ships an update every 3 months, and Image Compressor ™ every 5 months. Most recently, PSi4 Mobile was updated on September 29, 2026 and Image Compressor ™ on October 5, 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.*