Offline AI - Private Chat

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.
                                                                                                   
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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/