# Thinklet - AI Chat Client — OpenAI, Claude & LLM Models

> OpenAI, Claude & LLM Models (iPhone/iPad app by 洋 张.)

- Source: https://appshunter.io/ios/app/thinklet-ai-chat-client/id6761720405 (this page in markdown: same URL + `.md`)
- Developer: [洋 张](https://appshunter.io/developer/1809078958)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 26.2 · 6 MB
- Languages: English, French, German, Japanese, Korean, Chinese, Chinese
- Released: 2026-04-29
- Data updated: 2026-08-07
- User reviews in markdown: https://appshunter.io/ios/app/thinklet-ai-chat-client/id6761720405/reviews.md

## What is Thinklet?

Thinklet is a powerful, privacy-friendly AI chat client for iOS. Connect it to any OpenAI-compatible API -- including OpenAI, Anthropic, Mistral, Groq, Ollama, and self-hosted models -- and start chatting in seconds.


CONNECT ANY AI MODEL

Add your own API key and Base URL. Thinklet works with any service that follows the OpenAI Chat Completions standard. Manage multiple platforms side by side, browse the full model list, and star your favorites for quick access.


NATURAL VOICE CONVERSATION

Press and hold the mic button to speak. Thinklet transcribes your words in real time and sends them the moment you lift your finger. Enable the speaker to have AI responses read aloud -- perfect for hands-free use.


ATTACH IMAGES & FILES

Pick a photo from your library or attach a text or PDF file directly to your message. Vision-capable models can analyze images; text files are embedded as context so the AI understands your documents.


SMART SYSTEM PROMPTS

Choose from built-in prompt templates -- General Assistant, Blog Writer, Code Expert, Translator, Academic Editor, Creative Writer -- or craft and save your own. Each conversation can have its own persona.


PER-CONVERSATION PARAMETERS

Fine-tune Temperature, Max Tokens, Top-P, and streaming mode for every chat independently. Add custom key-value parameters for advanced API features without touching a single line of code.


MCP TOOL INTEGRATION

Connect external tools and data sources via the Model Context Protocol (MCP). Enable web search, code execution, database queries, or any MCP-compatible service -- and assign different tools to different conversations.


CLEAN, FOCUSED DESIGN

A sidebar keeps all your conversations organized. Swipe right or tap the menu icon to open it. The minimal input bar stays out of your way until you need it. Dark mode and Dynamic Type are fully supported.


YOUR DATA, YOUR CONTROL

Thinklet stores everything -- conversations, settings, API keys -- locally on your device using iOS secure storage. No account, no cloud sync, no telemetry.

Whether you are a developer experimenting with the latest models, a writer looking for a creative partner, or a professional who needs a capable AI assistant on the go, Thinklet gives you the flexibility and power you need, beautifully packaged for iPhone.


## Version history (last 3 releases)

### 1.2 — 2026-08-06

## Update Notes

This update adds:

1. Message controls: stop generation, regenerate, edit and resend, branch conversations, and delete messages.
2. Markdown support with code blocks, basic syntax highlighting, and one-tap code copying.
3. Conversation management with search, renaming, pinning, folders, bulk deletion, and Markdown/PDF export.
4. Multi-provider support for OpenAI, Anthropic, Gemini, Ollama, and custom OpenAI-compatible endpoints.
5. Context and cost tracking, including token estimates, automatic context trimming, model pricing, and conversation cost summaries.
6. MCP tool traces with execution status, duration, results, and flexible approval options.
7. Improved attachments with multiple file/photo selection, camera capture, image compression, OCR, PDF/CSV/source-code support, and Quick Look previews.

### 1.1 — 2026-07-16

1. Bug fixes
2. Updated UI design

### 1.0 — 2026-04-29

No release notes.

## More apps by 洋 张

- [DictZoom: AI Dictionary](https://appshunter.io/ios/app/dictzoom-ai-dictionary/id6751456425)
- [ThinkAudio - AI Voice Recorder](https://appshunter.io/ios/app/thinkaudio-ai-voice-recorder/id6764517722)
- [Verge Browser](https://appshunter.io/ios/app/verge-browser/id6792239503)

All apps by 洋 张: https://appshunter.io/developer/1809078958

## Related topics

[mistral chat](https://appshunter.io/ios/topics/mistral-chat) · [astrid ai client](https://appshunter.io/ios/topics/astrid-ai-client)

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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 2026-08-07.*