# CmEcho vs ZeroIM

The clearest difference is ads: CmEcho at none against ZeroIM's shown. CmEcho also leads on monetization model (free vs ad-supported) and device support (4 vs 2). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

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

CmEcho ships an update every 3 days, ZeroIM every 5 days. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | CmEcho | ZeroIM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cmecho/id6756966210/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 88.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | **Free** | Ad-supported |
| Size | 64 MB | 169 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Lechang Luke Cheng](https://appshunter.io/developer/1813409332) | [山东企语网络科技有限公司](https://appshunter.io/developer/1895730910) |

## What reviewers say

### 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


### ZeroIM

[App page](https://appshunter.io/ios/app/zeroim/id6764590685)

This app provides a secure and efficient platform for internal enterprise communication and collaboration. It supports various message types, high-definition audio/video calls, group management, and organizational structure features. It also offers a social feed for sharing updates and ensures data security with encryption.

**Highlights:** Instant messaging (text, voice, image, video, file), HD audio/video calls, Group chat and management, Organizational structure and employee management, Social feed for sharing updates, End-to-end encryption, Cross-device synchronization

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

**In-app purchases:** none


## Frequently asked questions

### Is CmEcho free?

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

### Is ZeroIM free?

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

### Do CmEcho or ZeroIM have ads?

ZeroIM shows ads; CmEcho does not.

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

CmEcho ships an update every 3 days, and ZeroIM every 5 days. Most recently, CmEcho was updated on October 2, 2026 and ZeroIM on October 12, 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.*