# 压缩专家 vs Chatbox

The clearest difference is ads: Chatbox at none against 压缩专家's shown. Chatbox also leads on rating (4.6 vs 4.2) and update cadence (weekly vs every 2 months). 压缩专家's advantage is iOS requirement (14.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Chatbox holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Chatbox has 665 ratings behind it against 76, so its average is the more settled of the two. Written reviews point the same way: 63% of 压缩专家's written reviews are positive against 78% of Chatbox's.

压缩专家 ships an update every 2 months, Chatbox weekly. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 压缩专家 | Chatbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (76 ratings)](https://appshunter.io/ios/app/id1482479741/reviews) | **[4.6 (665 ratings)](https://appshunter.io/ios/app/chatbox-powerful-ai-client/id6471368056/reviews)** |
| Number of ratings | 76 | **665** |
| Positive reviews | 62.5% of reviews | **77.8% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Ad-supported | **Free** |
| Size | 98 MB | 48 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [岚 赵](https://appshunter.io/developer/1352261434) | [2.5 HK LIMITED](https://appshunter.io/developer/1772881024) |

## What reviewers say

### 压缩专家

[App page](https://appshunter.io/ios/app/id1482479741)

This tool efficiently compresses various file types including documents, videos, audio, and images. It helps optimize phone storage by cleaning up duplicate photos and unnecessary data, making file transfer and sharing easier.

**Highlights:** Full-format file compression, Quick packaging and sharing, Intelligent photo album optimization, Deep phone storage cleanup, Supports documents, videos, audio, images, PDFs, GIFs

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

**In-app purchases:** none


### Chatbox

[App page](https://appshunter.io/ios/app/chatbox-powerful-ai-client/id6471368056)

This application acts as a universal client, connecting you to leading AI models across various devices. It offers features like code assistance, image generation, and smart file understanding, all while prioritizing local data storage for privacy.

**Highlights:** Connect to multiple AI models, Analyze documents, images, and code, AI-powered code generation and optimization, Text-to-image generation, Local data storage for privacy, Cross-device synchronization

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

**In-app purchases:** none

**What reviewers like**

- 👍 Good customization options
- 🚀 Works well with local LLMs
- 💡 Supports multiple API formats
- 🔒 Privacy-focused (account-free)

**What reviewers complain about**

- 🐛 Local network access issues on iOS
- 🐛 Compatibility problems with older iOS versions
- 🐛 Streaming response issues
- 🐛 UI/UX not optimized for mobile

**Reported bugs**

- Cannot select Ollama models
- Custom API URL connections failing
- Live scrolling issues during streaming
- Proxy settings not working on mobile

**Requested features**

- Add support for local Ollama models
- Improve organization features (folders, projects, etc.)
- Implement iCloud syncing
- Add Chinese language support


## Frequently asked questions

### Is 压缩专家 free?

压缩专家 is free to download, with no in-app purchases.

### Is Chatbox free?

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

### Which has better reviews, 压缩专家 or Chatbox?

Chatbox is rated higher. 压缩专家 averages 4.2 out of 5 from 76 ratings, while Chatbox averages 4.6 from 665 ratings.

### Do 压缩专家 or Chatbox have ads?

压缩专家 shows ads; Chatbox does not.

### Which is updated more often, 压缩专家 or Chatbox?

压缩专家 ships an update every 2 months, and Chatbox weekly. Most recently, 压缩专家 was updated on October 24, 2026 and Chatbox on October 30, 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.*