FoundationChat: Intelligent Conversations, Completely Private
Experience AI without compromising your privacy. FoundationChat runs entirely on your iPhone or iPad—no internet required, no data sent to servers. Uses Apple’s on-device Intelligence or Cactus open models.
PRIVACY FIRST
100% on-device processing—no ChatGPT, OpenAI, or third-party AI
Zero data collection—conversations never leave your device
No account, login, or tracking
FEATURES
Natural conversation powered by on-device AI
Context-aware responses
Multiple conversation threads
Clean SwiftUI interface
Works offline with instant responses
Unlimited chat sessions
REQUIREMENTS
iOS 26.0 or later
Apple Intelligence: iPhone 15 Pro+, iPhone 16+, or iPad with M1+ (enable in Settings)
Cactus: iPhone 13 Pro and other devices with 4GB+ RAM (download a model in-app)
WHY FOUNDATIONCHAT?
Unlike cloud-based chatbots, FoundationChat keeps everything local. Your questions and conversations stay on your device. Ideal for brainstorming, writing help, learning, and any task where privacy matters.
Download FoundationChat for truly private AI conversations.
What's new (v1.05)
-Refreshed settings screens with a cleaner Liquid Glass design.
-Smarter token defaults and response limits for local models.
-Improved model selection behavior with better per-model recommendations.
-Added Cactus dSYM support for better crash diagnostics.
-CI and build reliability improvements.