DeepChat vs On‑Device AI

DeepChat is your all-in-one AI assistant and creative partner, unifying chat, writing, coding, translation, search, and multimodal understanding. 100 models in one app with a consistent experience and content management. With industry-leading model capabilities and online retrieval across all models, you get answers and content that are faster, more accurate, and trustworthy. ## Core Features - One app, 100 models: Use 100 models in a single app and switch on demand for general, reasoning, coding, vision, and more. - Web-connected search: Every model can browse and retrieve authoritative, up-to-date information, aggregating multiple sources to greatly improve accuracy and timeliness. - Visual understanding: Upload images for visual Q&A, chart and flowchart analysis, and understanding screenshots or documents with key-point extraction. - Thought process transparency: Clearly presents reasoning paths and evidence for answers for more control and trust. - Simple and effortless: Powerful capabilities with a minimalist interface. Works great out of the box. - Organized conversations: Edit, reorder, and pin chats so important content is always at hand. - Automatic sync: We value your privacy and convenience. Real-time sync across devices keeps everything seamless. ## More Capabilities - Chat with PDFs and more: Extract key points, generate summaries and Q&A for faster study and work. - Preset or custom roles: One-tap switching for writing, coding, product, operations, and more. - Best-in-class speech synthesis: Natural, expressive voices for many use cases. - Forgetting divider: One tap to change topics and reset context to keep chats focused. - Voice input: Highly accurate speech-to-text to capture ideas anytime. - Markdown rendering: Better formatting for improved reading and sharing. - Token usage: Clear, detailed accounting of usage and costs. ## Use Cases - Learning and research: Information retrieval, reading comprehension, key point/exam point summaries, and note generation. - Writing and creation: Topic ideation, outlines, polishing, rewriting, and style transfer. - Programming and engineering: Code assistant, debugging hints, technical designs, and documentation. - Business and office: Emails, reports, proposals, meeting minutes, and action lists. - Multimodal understanding: Structured analysis and key-point extraction for screenshots, charts, and photos. ## Policies - Privacy Policy: https://deepchat.app/privacy - Terms of Service: https://deepchat.app/terms

On-Device AI puts chat, listening, transcription, notes, and research in one private app for iPhone, iPad, Mac, and Apple Vision Pro. Your data stays on your device. Download a model once and keep working on a plane, on the subway, or without a signal. Chats, documents, recordings, and notes stay on your device. Online providers and web features are optional and work only after you enable them. ONE APP, YOUR WAY Open every workspace from a customizable Menu. Keep favorites under Pinned and everything else close by under Available. AI CHAT Chat with local or cloud models. • Run local models from families such as Gemma, Qwen, DeepSeek, and Mistral, or connect your own provider account • Browse, download, and manage models that fit your device, including ones for text, vision, reasoning, and tools • Drop in documents, images, and scanned PDFs; approve private on-device OCR only when a PDF needs it • Fork any conversation and compare several models on the same prompt • Let the model use tools for calculations, web requests, documents, Calendar, and Reminders, and review proposed changes before they apply • Create reusable Agent Profiles, then add AI Skills, MCP servers, and tools from one clearer Agent Workflows setup • Keep facts you repeat often in Global Memory LISTEN LIBRARY AND RSS FEEDS Read less, listen more. • Turn PDFs, Markdown, plain text, web articles, and scanned books into a listening queue • Scan photographed pages, correct the OCR the app runs on device, and keep each page with its spoken text • Follow sites through RSS, Atom, and JSON feeds, then send articles to Up Next • Choose Apple voices or local neural voices, follow along in the reader, and set a sleep timer VOICE NOTE, VOICE TYPING, AND TEXT TO SPEECH Speak instead of typing, and listen instead of reading. • Record and transcribe meetings, lectures, interviews, and quick ideas • Dictate with Voice Typing on Mac or the voice keyboard on iPhone and iPad • Transcribe with Apple Speech, Whisper, Parakeet, Nemotron, Qwen3-ASR, MOSS, and other engines • Turn text, or text captured from a photo, into audio with Apple voices, Kokoro, Supertonic, VoxCPM2, IndexTTS2, and other engines • Export transcripts as text, subtitles, or Markdown AI SEARCH AND AI BROWSER Research with a second pair of hands. • Search the web in a conversation and let the model read the results for you • Browse with tabs, profiles, history, and downloads, then ask your model to read, assist, or act on the page • Hand a task to the browser agent, watch each step, and take over whenever you want KNOWLEDGE AND TEXT NOTE Give your AI your own material to work from. • Add PDFs, text, Markdown, code, images, and website content to a private searchable library • Write and edit Markdown notes in the app • Import AI chats, voice notes, Text to Speech items, and AI Search results • Tune retrieval and index edited content again APP HELP Ask how a feature or setting works. App Help answers from a guide that ships inside the app, keeps help out of your saved chats, and points to the right settings. MADE FOR APPLE DEVICES • Native layouts adapt from focused navigation on iPhone to category sidebars on larger screens • Settings are grouped by purpose, including Voice Typing, Agent Workflows, Models & Storage, Privacy & Data, Memory, and—on Mac—Instant Messaging • Widgets for Listen, Voice Note, Text Note, and Quick Actions • Siri, Apple Shortcuts, App Intents, the Mac menu bar, and keyboard shortcuts you can customize • Apple hardware acceleration for supported local models • Browse chat, transcription, speech, and embedding models in one Model Library • Store models internally, on an external drive, or on a shared volume, with separate tools for cleanup and recovery • Interface in English, Dutch, French, German, Italian, Japanese, Spanish, Portuguese, and Traditional Chinese EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/