Run powerful AI models directly on your iPhone — no internet required, no data ever leaves your device.
Completely offline. Your conversations stay on your device, always.
PRIVATE BY DESIGN
Every response is generated on your device using Apple's Metal GPU. No API keys. No cloud. No tracking.
BROWSE & DOWNLOAD MODELS
Explore curated model categories — Reasoning, Coding, General, and Creative — sourced from trusted community packagers and filtered to fit your device's RAM. Search HuggingFace live to find any model.
CHAT MODES & PERSONAS
Seven response modes — Markdown, LaTeX, Code, Concise, Step-by-step, ELI5, and Formal. Give your AI a custom Persona with a name, icon, and system prompt tailored to any task.
WEB SEARCH
Research Mode searches DuckDuckGo before every response so any model can answer questions about current
events, prices, or news. Off by default — you control when it's active.
STAY INFORMED
The Discover tab surfaces the latest AI news from The Verge and TechCrunch, updated throughout the day.
See what models are trending in the community right now.
OPTIMIZED FOR IPHONE
Best results on iPhone 15 Pro and later with 8GB RAM.
---
OFFLINE AI PRO
Unlock advanced features with an optional Pro subscription:
• Arena Mode — Run two models side-by-side in the same conversation
• Voice Mode — Hands-free AI with premium TTS voice selection
• HuggingFace Live Search — Find and download any GGUF model from HuggingFace
• Vision Models — Add multimodal MLX vision models to your library
• Image Generation — Generate images on-device with Stable Diffusion. Fully private.
• Unlimited Saved Models — Save as many models as your storage allows
Subscription options:
• Monthly — $4.99/month, auto-renewing
• Annual — $29.99/year, auto-renewing
• Lifetime — $59.99, one-time purchase (not a subscription)
Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew
unless cancelled at least 24 hours before the end of the current period. You can manage or cancel in
Settings > [Your Name] > Subscriptions.
Privacy Policy: https://myai.twinsuns.dev/privacy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Fixed a bug where a long conversation could stop responding entirely.
Once it hit the context limit, every following message failed the same
way with no way to recover short of starting a new chat. Older messages
are now set aside automatically so the conversation keeps going.
Models also reserve memory for context more efficiently, which leaves
more room on smaller devices, and attached documents are now sized to
the model you have loaded instead of a fixed limit.
Added Report a Bug in Profile — it drafts an email with your app version
and device already filled in.
Version 1.16
The developer, Twin Suns LLC, 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.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Twin Suns LLC
Size
54.3 MB
Category
Utilities
Compatibility
Requires iOS 18.0 or later.
iPhone Requires iOS 18.0 or later.
iPad Requires iPadOS 18.0 or later.
Mac Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.