# Zhi vs NOX Chat

The clearest difference is in-app purchases: NOX Chat at none against Zhi's 2. NOX Chat also leads on update cadence (every 11 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Zhi sells 2 in-app purchases, starting at $4.99 per month. NOX Chat asks for nothing beyond the download.

Zhi ships an update every 2 months, NOX Chat every 11 days. The most recent releases landed on November 4, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Zhi | NOX Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/zhi/id6737972651/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | Freemium | — |
| Size | 185 MB | 141 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [TxThinking, Inc.](https://appshunter.io/developer/1634589596) | [Mohammed Alnaimi](https://appshunter.io/developer/6775952516) |

## What reviewers say

### Zhi

[App page](https://appshunter.io/ios/app/zhi/id6737972651)

This secure messaging app prioritizes privacy with zero-trust, end-to-end encryption and pre-shared keys. It offers isolated chats and invites only friends, with an optional subscription for enhanced features like larger file transfers and unlimited chats.

**Highlights:** Zero-trust end-to-end encryption, Pre-shared key authentication, Isolated chat environments, Invite-only friend system, Optional subscription for enhanced features, Markdown support for messages

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zhi Plus Month | $4.99 | per month |
| Zhi Plus Year | $49.99 | per year |


### NOX Chat

[App page](https://appshunter.io/ios/app/nox-chat/id6775952514)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zhi free?

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

### Is NOX Chat free?

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

### Do Zhi or NOX Chat have ads?

Neither Zhi nor NOX Chat shows ads.

### Which is updated more often, Zhi or NOX Chat?

Zhi ships an update every 2 months, and NOX Chat every 11 days. Most recently, Zhi was updated on November 4, 2026 and NOX Chat on November 7, 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.*