Caverno
Local AI Chat with Tools
Free · Designed for iPad. Not verified for macOS.
Caverno is a powerful chat client for locally-hosted LLMs. Connect to Ollama, LM Studio, vLLM, or any OpenAI-compatible API endpoint and start chatting — no cloud required.
KEY FEATURES
• Any OpenAI-Compatible Server
Connect to your own LLM running on localhost or your local network. Supports any endpoint that speaks the OpenAI API format.
• Tool Calling (MCP Protocol)
Extend your AI with real-time tools — web search, calculator, code execution, and more. Caverno uses the Model Context Protocol to let your LLM take actions.
• Session Memory
Your assistant remembers your preferences, constraints, and context across conversations. Memory is stored locally and fully under your control.
• Voice In & Out
Speak your messages and have responses read aloud. Configurable speech rate and auto-read options.
• Image Attachments
Attach photos from your library to include visual context in your conversations.
• Multiple Conversations
Create, switch, and manage separate chat threads. All conversations are persisted locally.
• Assistant Modes
Switch between General and Coding modes for different response styles tailored to your task.
• Privacy First
No account required. No data sent to third parties. All conversations and memory stay on your device — the only network connection is to the server you configure.
GETTING STARTED
1. Install an OpenAI-compatible LLM server (Ollama, LM Studio, etc.)
2. Open Caverno and go to Settings
3. Enter your server URL and select a model
4. Start chatting!
Caverno is designed for developers, AI enthusiasts, and anyone who wants full control over their AI assistant.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
This update brings several improvements to the chat experience. You can now attach CSV, TXT, JSON, and Markdown files, and paste images directly into the chat input. We also added one-tap copying for code blocks and improved visibility into token usage during conversations.
The developer, Osamu Noguchi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Osamu Noguchi
- Size
- 34.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
18+
- 18+
- Infrequent
Cartoon or Fantasy Violence
Realistic Violence
Profanity or Crude Humour
Mature or Suggestive Themes
Horror/Fear Themes
Medical Treatment Information
Alcohol, Tobacco, Drug Use or References
Sexual Content or Nudity
Guns or Other Weapons
Contains
Health or Wellness Topics
- Copyright
- © 2026 Osamu Noguchi