# Decompress Master vs ERJ hub

The clearest difference is in-app purchases: ERJ hub at none against Decompress Master's 1. ERJ hub also leads on ads (none vs shown). Decompress Master's advantage is update cadence (every 3 days vs fortnightly) and iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Decompress Master sells 1 one-off in-app purchase. ERJ hub asks for nothing beyond the download.

Decompress Master ships an update every 3 days, ERJ hub fortnightly. The most recent releases landed on June 12, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Decompress Master | ERJ hub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/decompress-master/id6453695656/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 36 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [宗成 王](https://appshunter.io/developer/1515119982) | [Jesus Paolo Montero](https://appshunter.io/developer/1780276187) |

## What reviewers say

### Decompress Master

[App page](https://appshunter.io/ios/app/decompress-master/id6453695656)

Easily decompress various file formats like zip, rar, and 7z. Scan documents and convert them into editable text using OCR technology. All file processing is done locally for enhanced security.

**Highlights:** Multi-format decompression (zip, rar, 7z), Intelligent document scanning, OCR text recognition, Editable text conversion, Local file processing, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解压缩专业版 | $3.99 | one-time |


### ERJ hub

[App page](https://appshunter.io/ios/app/erj-hub/id6755725088)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Decompress Master free?

Decompress Master is free to download, with in-app purchases available.

### Is ERJ hub free?

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

### Do Decompress Master or ERJ hub have ads?

Decompress Master shows ads; ERJ hub does not.

### Which is updated more often, Decompress Master or ERJ hub?

Decompress Master ships an update every 3 days, and ERJ hub fortnightly. Most recently, Decompress Master was updated on June 12, 2026 and ERJ hub on September 10, 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.*