# DDchat AI — Polished native AI chat client

> Native iOS AI chat client with multi-model support and advanced reasoning visualization. (iPhone/iPad app by 俊华 乔.)

- Source: https://appshunter.io/ios/app/ddchat-ai/id6766894679 (this page in markdown: same URL + `.md`)
- Developer: [俊华 乔](https://appshunter.io/developer/1896311102)
- Category: Productivity, Utilities
- Price: Free (on sale, was $1.99)
- Age rating: 4+
- Requires: iOS 16.0 · 11 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-05-08
- Data updated: 2026-09-12
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ddchat-ai/id6766894679/reviews.md

## What is DDchat AI?

DDchat AI is a polished, minimalist native iOS AI client with web search, multimodal understanding, and HTML rendering. Connect your own APIs to use different providers and models in one flexible, fluid app.

— BEAUTIFUL BY DESIGN —
From rounded bubbles to smooth streaming animations, from live scrolling reasoning previews to syntax-highlighted code blocks, every pixel is polished. Full Light and Dark Mode support, liquid glass, and gradient accents create a truly native experience.

— OFFICIAL APIs AND THIRD-PARTY GATEWAYS —
One app to connect with advanced AI models from around the world. Use DeepSeek, Kimi, MiniMax, Zhipu, MiMo, Qwen, and more. Connect to official providers or compatible third-party gateways, choose your provider, and switch models to suit each task.

— AUTOMATIC MODEL CAPABILITY DETECTION —
A built-in capability database detects whether a model supports advanced reasoning, vision, tool calling, and more, then applies the appropriate parameters. The database updates silently from the cloud, helping new models work without an app update.

— HTML RENDERING ENGINE —
HTML tags in AI replies can be rendered directly in the conversation, making cards, tables, lists, and other rich content easier to read. Built-in Markdown parsing and syntax highlighting for 10+ languages, including Python, Swift, Go, and Rust, keep code and quotes clear as well.

— MATH AND DIAGRAM RENDERING —
Render LaTeX equations and Mermaid diagrams right in your conversations, from formulas to flowcharts and sequence diagrams. Zoom in on diagrams and save them as images for study, organization, or sharing.

— WEB SEARCH WITH SOURCES —
Use built-in model search or connect a range of independent search services. Models can search and browse the web based on your question, with citations and sources shown directly in the answer so important information is easy to verify.

— MULTIMODAL IMAGE UNDERSTANDING —
Take a photo or select multiple images from your library and chat directly with vision-capable models. Analyze screenshots, understand scenes, or read text from images with ease.

— VISUALIZED REASONING —
See a model's reasoning as it is generated, then expand it for more detail. When supported, choose different reasoning levels to balance response speed and depth.

— TASK-SPECIFIC ASSISTANTS —
Create dedicated AI assistants for different scenarios, such as translation, coding, writing, or research. Each assistant has its own system prompt, sampling parameters, context length, and default model.

— ASSISTANT CREATION AND OPTIMIZATION TOOLS —
Describe what you need in one sentence, and AI can create a new assistant for you. If the results are not quite right, use another request to refine its prompts and related settings so it works the way you want.

— PRIVACY-FIRST, STORED LOCALLY —
API keys, chats, and assistant settings are stored locally on your device. Requests go directly to the AI provider you choose, without passing through a DDchat intermediary server. No analytics, no ads, no tracking.

— MORE HIGHLIGHTS —
- Multi-conversation history grouped by assistant
- Fetch model lists online or add models manually
- Duplicate, import, and share assistants
- Keep streaming replies running in the background and generate with multiple assistants at once

Getting started:
1. Add an API provider in Settings, either an official endpoint or a compatible gateway
2. Create an AI assistant and configure its prompt and parameters
3. Choose a model and start chatting

Note: This app requires you to provide your own API keys. It does not include or provide any AI service.

— CONTACT —
For feedback or questions, please email: ddchatsupport@gmail.com

## Key features

- Native iOS feel with fluid animations
- Supports Chat Completions and Anthropic protocols
- Automatic model capability detection
- Visualized chain-of-thought reasoning
- Task-specific AI assistants
- Inline HTML rendering with Markdown support
- Privacy-first, zero data upload

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/ddchat-ai/id6766894679/reviews.md

### 5/5 — 希望添加字体设置和字体大小设置功能

*2026-09-08*

字面意思，希望和pc端的cherry一样，添加个字体大小设置功能。

**Developer response:** 收到，字体大小设置将在下个版本迭代

### 5/5 — 世界上最好的ai客户端

*2026-09-04*

rt

**Developer response:** 感谢支持！有问题随时反馈

### 4/5 — 多模态接入

*2026-08-26*

希望可以增加附件上传，图片、视频、以及各种文件的上传以及处理功能。
最好也加上知识库以及rag

### 3/5 — 不支持api联网查，交互逻辑不太行

*2026-08-16*

一个是不能联网查，一个是交互逻辑有待提升，建议学习下其他客户端

**Developer response:** 感谢反馈，网络搜索功能将在下个版本增加

### 5/5 — 建议

*2026-08-10*

很好用 很简洁 但是能加入联网就更好了 等于选了API但是没有网络连接 要自己不断的切换搜索信息

**Developer response:** 感谢反馈，网络搜索功能将在下个版本增加

## Frequently asked questions about DDchat AI

### What is DDchat AI?

DDchat AI is a native iOS application designed for interacting with various AI models. It focuses on a beautiful user interface, advanced features like visualized reasoning, and strong privacy controls, keeping all data on your device.

### Does DDchat AI have ads?

No, DDchat AI is ad-free. The application emphasizes a privacy-first approach with zero data upload and no analytics or tracking, ensuring an uninterrupted user experience.

### How much does DDchat AI cost?

DDchat AI is a paid application, available for a one-time purchase of $1.99. This price grants you access to all its features without any ongoing subscription fees.

### What AI models does DDchat AI support?

DDchat AI supports a wide range of models through official APIs and third-party gateways. This includes Chat Completions compatible providers like DeepSeek, Kimi, MiniMax, and Qwen, as well as Anthropic (Claude) protocols.

### Can I use my own API keys with DDchat AI?

Yes, DDchat AI requires you to provide your own API keys. The app connects directly to your chosen API provider, ensuring your data is not processed through a middleman server.

### How often is DDchat AI updated?

The latest version of DDchat AI is 1.4.0, last updated on July 30, 2026. The app's capability database for models also updates silently from the cloud, ensuring new models are recognized without an app update.

### Is DDchat AI available on Android?

DDchat AI is currently designed as a native iOS application and is supported on iPhone and iPad. There is no information available regarding an Android version at this time.

### What languages does DDchat AI support for its interface?

DDchat AI offers a full UI in Simplified Chinese, English, Japanese, Korean, and Traditional Chinese. It defaults to your system language but can be switched in the Settings menu.

## Version history (last 5 releases)

### 2.3.0 — 2026-09-12

DDchat 2.3 is here.
This release brings a wave of new features for better AI conversations and richer content.
What's new:
- Added HTML web previews: open AI-generated pages, view the results, and share HTML files
- Added LaTeX equation and Mermaid diagram rendering, with zoomable diagrams you can save as images
- Added assistant creation and optimization tools: create an assistant with one request, or refine an existing assistant's prompts and related settings
- Added preset API providers with site selection, prefilled request URLs, API key pasting, and links to official key pages
- Added separate font size controls for the app interface and conversations, each with 7 sizes
- Updated model compatibility and improved localization
- Improved typing, scrolling, menus, and page transitions

### 2.2.0 — 2026-09-07

DDchat 2.2 is here.
This major update adds web search and multimodal image support, while further refining the chat and model experience.
What's new:
- Redesigned the model selection panel with swipe-down dismissal for easier model switching
- Adjust reasoning effort with a slider that shows the levels supported by the selected model
- Added current time lookup: when using third-party search services, models can read your device's time and time zone as needed. You can turn this off in Settings
- Refined the model panel's animations and haptic feedback when opening, closing, and switching
- Fixed an issue where the keyboard could cover the cursor and text while editing long messages

### 2.1.0 — 2026-09-05

DDchat 2.1 正式到来。
本次大版本带来联网搜索与多模态图片理解，并进一步完善了对话和模型使用体验。
本次更新：
- 新增模型能力设置，可按模型手动调整思考、图片理解、工具调用和联网搜索能力
- 优化模型添加流程，支持自动获取或手动添加模型
- 新增对 Claude Fable 5.1、Gemini 3.8 Flash、Qwen3.8 Flash / Max / Plus、GLM-5.3 Flash、腾讯混元 Hy4 Preview 等模型的适配
- 优化最新模型的思考开关、档位显示与请求兼容
- 优化长对话中的消息长按、代码复制、流式显示和自动滚动体验

### 2.0.0 — 2026-09-04

DDchat 2.0 正式到来。
本次大版本带来联网搜索与多模态图片理解，并进一步完善了对话和模型使用体验。
本次更新：
- 全新联网搜索：支持模型内置联网能力及多种搜索服务，模型可根据问题主动搜索和浏览网页
- 搜索结果支持引用角标与来源列表，查看信息出处更加方便
- 新增多模态图片理解：支持拍照或从相册添加多张图片，与视觉模型直接对话
- 重新设计模型、思考强度和联网搜索的选择体验，操作更加集中直观
- 优化 HTML 渲染、模型适配与多项使用细节

### 1.4.0 — 2026-07-30

What's new:
- Share the assistants you've carefully tuned: package their personas, prompts, and parameters into a .dda file, send it to friends or move it between your devices, then import it and start using it right away
- Added compatibility for Claude Opus 5 / Sonnet 5, Qwen 3.8, Kimi K3 / K2.7 Code / K2.6, Hunyuan Hy3, MiniMax M3, Grok 4.5, Gemini 3.6 Flash / 3.5 Flash-Lite, Mistral Medium / Small, and more
- Various fixes and usability improvements

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-12.*