# EV扩展屏 vs Chatbox

The clearest difference is review sentiment: Chatbox at 78% against EV扩展屏's 0%. Chatbox also leads on rating (4.6 vs 1.0) and update cadence (weekly vs every 3 months). EV扩展屏's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and monetization model 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 1.0. That said, the two scores are not equally well evidenced: Chatbox has 632 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of EV扩展屏's written reviews are positive against 78% of Chatbox's.

EV扩展屏 ships an update every 3 months, Chatbox weekly. The most recent releases landed on September 16, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | EV扩展屏 | Chatbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ev/id6443439614/reviews) | **[4.6 (632 ratings)](https://appshunter.io/ios/app/chatbox-powerful-ai-client/id6471368056/reviews)** |
| Number of ratings | 1 | **632** |
| Positive reviews | 0.0% of reviews | **78.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | Free |
| Size | 9 MB | 48 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [振宇 胡](https://appshunter.io/developer/1190222874) | [Mediocre Apps](https://appshunter.io/developer/1772881024) |

## What reviewers say

### EV扩展屏

[App page](https://appshunter.io/ios/app/ev/id6443439614)

This utility app allows you to use your mobile device as an external display for your computer. It supports both extended and mirrored screen modes, and can also sync your computer's audio to your phone or tablet.

**Highlights:** WiFi connection, Dual screen collaboration, Extended display mode, Mirrored display mode, Computer audio sync

**Features:** macOS Compatibility

**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 EV扩展屏 free?

EV扩展屏 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, EV扩展屏 or Chatbox?

Chatbox is rated higher. EV扩展屏 averages 1.0 out of 5 from 1 ratings, while Chatbox averages 4.6 from 632 ratings.

### Do EV扩展屏 or Chatbox have ads?

Neither EV扩展屏 nor Chatbox shows ads.

### Which is updated more often, EV扩展屏 or Chatbox?

EV扩展屏 ships an update every 3 months, and Chatbox weekly. Most recently, EV扩展屏 was updated on September 16, 2026 and Chatbox on September 26, 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.*