Siti AI
Your private on-device AI
Free
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.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Bug fixes and performance improvements.
The developer, Splitfire AB, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Splitfire AB
- Size
- 102.6 MB
- Category
- Productivity
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 14.0 or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Splitfire AB