Siti AI

Meet Siti — your private AI assistant, running entirely on your device.

Siti is a profoundly capable, profoundly personal assistant that never sends your words to the cloud. Ask questions, draft messages, brainstorm ideas, summarize text, translate languages, or just talk things through — all powered by an on-device AI model that keeps every conversation completely private.

ASK SITI ANYTHING
• Get clear answers to everyday questions
• Draft emails, messages, and posts
• Brainstorm ideas and make plans
• Summarize long text in seconds
• Translate between languages
• Explain difficult topics simply
• Get help with writing and editing
• Learn something new, one question at a time

100% ON YOUR DEVICE
Siti's AI runs entirely on your iPhone and iPad. No data is ever sent to a server — your conversations never leave your device. After a one-time model download (~1–2 GB), Siti works completely offline. No internet connection required.

PRIVATE BY DESIGN
• No account, no sign-in
• No cloud processing
• No tracking, no ads
• No data collection
Your conversations are yours alone.

WORKS ANYWHERE, ANYTIME
On a plane, on the subway, off the grid — Siti is always ready. Because everything happens on your device, you get fast, private answers wherever you are.

FAST AND NATIVE
Built as a native app and optimized for Apple silicon, Siti delivers quick, fluid responses that feel right at home on iOS.

WHY SITI?
The name is a playful nod to the assistants we all know — but Siti flips the script: instead of the cloud, everything stays with you. Profoundly personal. Entirely private.

KEY FEATURES
- Private on-device AI chat
- Works fully offline after model download
- No account or subscription required
- No tracking or data collection
- Clean, distraction-free design
- Fast responses powered by Apple silicon

Download Siti today and meet the assistant that keeps your world to itself.