How It Works
Pick a model
Use Apple's built-in model instantly, or download an open model (Qwen, Phi, SmolVLM).
Chat anything
Ask questions, write, code, attach a photo, or talk — all processed on your iPhone.
Stay private
Nothing leaves your device. Your chats live only on your phone.
Features
General-purpose chat
Ask anything, brainstorm, summarize, learn — a real assistant, fully offline.
Understands images
Attach a photo and ask about it with on-device vision models like Qwen2.5-VL.
Voice in & out
Speak your message with on-device speech-to-text, and have replies read aloud.
Built-in assistants
Writing helper, code helper, meal planner, interview coach, language partner and more — each a tuned persona.
Open models, open licenses
Ships only Apache-2.0 / MIT models — transparent and free, not a black box.
Choose your model
From fast 1.5B models to a smart 8B — pick what fits your iPhone and download on demand.
Requirements
Why on-device?
Cloud AI apps send everything you type to someone else's servers. Quanta doesn't. Your prompts, your photos, and your chat history stay on your iPhone — private by design, and free to run because there are no servers in the loop.
Your AI. On your phone. Yours alone.
Quanta is coming soon to the App Store. Want to know when it launches?
Notify me at launch