Zhi

Zhi

A Zero-Trust E2EE IM

8 ratings
6 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • December 9, 2024
  • July 25, 2026

Features

Zhi screenshot #1 for iPhone
Zhi screenshot #2 for iPhone
Zhi screenshot #3 for iPhone
iphone
ipad
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About

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.

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
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What's New in Zhi

20260724.0.0

July 25, 2026

- bugfix

Subscription plans

Zhi Plus Month

Zhi Plus Month

$4.991 Month
How to cancel Zhi subscription ⁉️

User reviews

The future IM

Everyone should change your IM to Zhi, it is the future. You shouldn’t need to trust the server, because it is transparent and zero trust.

非常强大

可以自己编程写机器人,密钥不经过服务器,零信任,以后都不要用那些内容经过第三方服务器的机器人了。

Programmable IM

A really programmable IM that can do anything I want.

看起来很高级

不是很懂,看博客挺技术范,适合私密团队用?

Trusted IM

A truly E2EE IM, unlike Signal and WhatsApp use their server to exchange key. In Zhi, your key will never leave your device.

Developer apps

FAQ

What makes Zhi's encryption different?

Zhi uses pre-shared keys for its zero-trust, end-to-end encryption, unlike other apps that rely on server intermediaries for key generation. This approach enhances security by removing a central point of trust.

How does Zhi handle chat isolation?

Every chat in Zhi is isolated, meaning conversations are kept separate and secure. This design prevents cross-contamination of data between different conversations.

Can I use Zhi to chat with anyone?

Zhi only supports chatting with friends you've invited or those who have invited you. This controlled approach to connections enhances user privacy and security.

What are the benefits of Zhi Plus?

Zhi Plus offers features like Markdown rendering, end-to-end encrypted meetings, larger message and file size limits (up to 99MB for files), and unlimited chats. Free users have limitations on these features.

How much does Zhi Plus cost?

Zhi Plus is a subscription service costing approximately $4.99 per month or $49.99 per year. Payment is handled through your iTunes account, and subscriptions auto-renew unless turned off 24 hours prior to the current period's end.

Is Zhi suitable for younger users?

Zhi has an age rating of 17+, indicating it is intended for mature audiences. This is likely due to the advanced security features and the nature of private communication.

How often is Zhi updated?

The app was last updated on March 25, 2026, with version 20260401.0.0. This indicates a recent update, suggesting ongoing development and maintenance.

What platforms does Zhi support?

Zhi is available on Mac, iPhone, iPad, and iPod. This broad compatibility allows users to communicate across various Apple devices.