# 518 一键报警 vs 解压喵

The clearest difference is in-app purchases: 518 一键报警 at none against 解压喵's 1. 518 一键报警 also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 解压喵 sells 1 one-off in-app purchase. 518 一键报警 asks for nothing beyond the download.

518 一键报警 ships an update weekly, 解压喵 every 10 days. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 518 一键报警 | 解压喵 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lz4/id6757422039/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 64.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 15 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Quanzhou Heyi Electronics Co., Ltd.](https://appshunter.io/developer/935300847) | [培 杨](https://appshunter.io/developer/1859404382) |

## What reviewers say

### 518 一键报警

[App page](https://appshunter.io/ios/app/518/id1571864537)

**Features:** macOS Compatibility

**In-app purchases:** none


### 解压喵

[App page](https://appshunter.io/ios/app/lz4/id6757422039)

This utility app efficiently handles various compressed file formats on iOS devices. It specializes in LZ4 compression, offering speed and performance for advanced users. Manage and view your extracted files, including text and code, with a focus on privacy and local processing.

**Highlights:** LZ4 compression and decompression support, Handles ZIP, RAR, 7z, TAR, GZ, BZ2, XZ, File browsing and management, Text and code file viewer, Local file processing for privacy

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UnzipCat PRO | $2.99 | one-time |


## Frequently asked questions

### Is 518 一键报警 free?

518 一键报警 is free to download, with no in-app purchases.

### Is 解压喵 free?

解压喵 is free to download, with in-app purchases available.

### Do 518 一键报警 or 解压喵 have ads?

Neither 518 一键报警 nor 解压喵 shows ads.

### Which is updated more often, 518 一键报警 or 解压喵?

518 一键报警 ships an update weekly, and 解压喵 every 10 days. Most recently, 518 一键报警 was updated on October 27, 2026 and 解压喵 on October 31, 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.*