# U vs CmEcho

The clearest difference is in-app purchases: CmEcho at none against U's 3. CmEcho also leads on ads (none vs shown) and update cadence (every 3 days vs weekly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. U sells 3 in-app purchases, starting at $1.99 per month. CmEcho asks for nothing beyond the download.

U ships an update weekly, CmEcho every 3 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | U | CmEcho |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cmecho/id6756966210/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | — | Free |
| Size | 94 MB | 64 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [HAIK](https://appshunter.io/developer/1780180781) | [Lechang Luke Cheng](https://appshunter.io/developer/1813409332) |

## What reviewers say

### U

[App page](https://appshunter.io/ios/app/uuchat/id6739705943)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 感情アイコン追加 スタンダードプラン - 1か月 | $1.99 | per month |
| 感情アイコン追加 プレミアムプラン - 1か月 | $3.99 | per month |
| Generate an avatar | $0.99 | one-time |


### CmEcho

[App page](https://appshunter.io/ios/app/cmecho/id6756966210)

This app offers secure video conferencing and instant messaging with a focus on privacy. It supports one-on-one and group calls, file sharing, and encrypted communication for personal and professional use.

**Highlights:** One-on-one HD video calls, Group video conferencing, Private and group chats, Text, image, and voice messaging, File sharing, Encrypted communication

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is U free?

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

### Is CmEcho free?

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

### Do U or CmEcho have ads?

U shows ads; CmEcho does not.

### Which is updated more often, U or CmEcho?

U ships an update weekly, and CmEcho every 3 days. Most recently, U was updated on October 30, 2026 and CmEcho 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.*