LLM Hub

Experience the next generation of AI with LLMHub, the most powerful private AI assistant for iPhone and iPad. Runs cutting-edge large language models (LLMs) entirely on-device upright, with zero data sharing and no need for the internet. Powered by the RunAnywhere SDK and deeply optimized for Apple chips.
Eight powerful on-device tools
• SMART CHAT: Supports multi-turn conversations, context awareness, RAG memory, and optional text-to-speech auto-reading. Supports text, image, and audio input. Powered by the RunAnywhere inference engine for extreme performance.
• WRITING AID: Instantly summarizes documents, rewrites content, and improves grammar. Processes long texts locally without sending any single word to the cloud.
• IMAGE GENERATOR: Creates stunning visuals using Stable Diffusion. Optimized for Apple Neural Engine (ANE) and Metal for fast local image synthesis directly from text or image prompts.
• TRANSLATOR (50+ language translation): Real-time two-way translation for text, audio, and image (OCR). Great for secure, private communication while traveling or working.
• TRANSCRIBER: High-precision speech-to-text conversion using native iOS recognition capabilities. All audio processing is done on the device to ensure absolute privacy.
• VIBECODE CREATOR: The ultimate AI personalization engine. Build, share, and use custom AI characters with deep behavior instructions throughout all chats.
• CODE ASSISTANT: Generates, interprets, and debugs code using VibeCode-enhanced models like Gemma-4. Has local inference capabilities to understand your specific programming style.
• SCAM DETECTOR: Analyzes suspicious messages and phishing images to assess risks. Gets clear local assessments to protect your digital identity security.
Cutting-edge technology stack
LLMHub is built specifically for iOS, leveraging the latest achievements in mobile AI research milling:
• RunAnywhere SDK: High-performance inference backend supporting GGUF, ONNX, and LiteRT formats with full Metal …