# ZenChatIM vs ZeroIM

The clearest difference is ads: ZenChatIM at none against ZeroIM's shown. ZenChatIM also leads on monetization model (free vs ad-supported). ZeroIM's advantage is update cadence (every 5 days vs monthly) and review sentiment (89% vs 69%). 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.

ZenChatIM ships an update monthly, ZeroIM every 5 days. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ZenChatIM | ZeroIM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (216 ratings)](https://appshunter.io/ios/app/zenchatim/id6476132820/reviews)** | — |
| Number of ratings | **216** | — |
| Positive reviews | 69.0% of reviews | **88.7% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | **Free** | Ad-supported |
| Size | 75 MB | 169 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [杭州安信博源科技有限公司](https://appshunter.io/developer/1725941146) | [山东企语网络科技有限公司](https://appshunter.io/developer/1895730910) |

## What reviewers say

### ZenChatIM

[App page](https://appshunter.io/ios/app/zenchatim/id6476132820)

This secure messaging app offers robust end-to-end encryption to protect user communication data. It includes advanced security features like anti-screenshot and remote destruction, alongside tools for efficient information exchange and processing.

**Highlights:** End-to-end encryption, Anti-screenshot protection, Remote destruction, Top secret sessions, Global search, Group chat bulletin board

**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 ZenChatIM free?

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

### Is ZeroIM free?

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

### Do ZenChatIM or ZeroIM have ads?

ZeroIM shows ads; ZenChatIM does not.

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

ZenChatIM ships an update monthly, and ZeroIM every 5 days. Most recently, ZenChatIM was updated on September 28, 2026 and ZeroIM on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*