Retired · where it started
ChatBro
ChatBro was our first exploration into private, on-device AI — a chat app for iOS built entirely around privacy. It isn't in the App Store any more and we don't maintain it; everything it proved went into Logue, our local-first workspace for documents, tasks and meetings on macOS.
What ChatBro pioneered
On-device AI, from day one.
These capabilities laid the foundation for everything we built next.
Privacy-first AI
All AI processing happens on your device. No data sent to the cloud.
Works offline
Use ChatBro without an internet connection. Perfect for travel.
Smart conversations
Chat with on-device language models for fast, private responses.
Document chat (RAG)
Chat with your PDFs and files privately, all processed locally.
Premium web search
Get live information from the web when you need it. Only the query is sent.
Native iOS experience
Built specifically for iOS with a clean, intuitive interface.
Looking for a private AI assistant?
Logue takes everything ChatBro started and adds writing tools, meeting transcription, and a full productivity suite — all on-device.
Explore Logue