Offline Private AI Library vs LocalRAG!

Opal AI is an offline AI app for iPhone that lets you run powerful AI models directly on your device. Everything works completely offline; no internet, no accounts, no tracking. Just download once and use it anywhere, even in airplane mode. Your conversations stay on your iPhone and nowhere else. If you’re looking for offline AI that puts privacy first, Opal AI acts as both an offline AI chatbot and a private AI assistant, built for people who want full control over their data. Opal AI includes an offline private AI library that runs modern large language models locally on your device. All AI processing happens on-device, so you can chat with AI without an internet connection or cloud services. You can browse curated MLX-compatible models from Hugging Face, download them with pause and resume support, and chat in a clean, focused SwiftUI workspace; no sign-ups required. Why offline AI? Because privacy and reliability matter. Your prompts, responses, and custom instructions never leave your device. Once a model is downloaded, this offline AI app works fully offline, including in airplane mode. It’s ideal for sensitive research, travel, or teams that need secure, offline AI chat under strict data policies. Most AI apps rely on subscriptions, cloud servers, or data collection. Opal AI takes a different approach: it’s a one-time purchase with no subscriptions, no accounts, no ads, and no tracking. All AI runs locally on your device, with nothing sent to the cloud. Download and manage AI models Opal AI makes working with offline AI models simple: - Curated Qwen, Llama, Phi, and coder models, grouped by use case with size and language details - Save your own Hugging Face repo IDs or open Hugging Face directly in the app - Pause and resume large downloads, with reminders to keep the app open when needed - Remove models with a simple swipe to free up storage Chat smarter The offline AI chat experience is designed to stay out of your way: - Clean Markdown conversations with headings, lists, and code blocks - Quick starters to help you begin new chats - Share or export conversations as Markdown with timestamps - Pause or resume responses while they’re generating - Copy individual replies or remove specific messages from chat history - Clear status indicators when models are loading or busy Tune it your way Customize how your offline AI assistant behaves: - Light and dark themes with accent color options - Prompt profiles for reusable system and starter prompts - Forced language settings: Auto, English, or Russian - Controls for temperature, top-p, max tokens, context size, and repetition - One-tap reset to default settings anytime On-device processing This offline AI app is powered by MLX and LocalLLMClient for local inference. After a model is downloaded, all AI runs remain fully offline; no cloud calls. A system info view shows memory usage and device capabilities, helping you choose models that fit your iPhone. Opal AI is built for experimentation and learning. It’s not a replacement for professional advice and may sometimes produce incorrect or outdated information.

LocalRAG! — Any file. One conversation. PDF, Excel, Word, PowerPoint, EPUB, images — and now audio recordings and video files. No matter the format, just add them to a collection. AI searches across all your documents at once. No cloud uploads required. NEW IN v3.0: AUDIO & VIDEO TRANSCRIPTION Import MP3, M4A, WAV, AAC, FLAC audio files and MP4, MOV, M4V video files. WhisperKit transcribes everything entirely on your device — no audio ever leaves your phone. AI-powered cleanup automatically removes filler words and stutters for cleaner transcripts. Tap any answer to jump straight to the timestamped segment. HOW PEOPLE USE IT • Meeting recordings turned into searchable knowledge Import your meeting recordings. Ask "What was decided about the budget?" Get answers with timestamps you can jump to. • Lecture videos and study materials together Mix lecture videos, PDFs, and your notes in one collection. Ask "Explain the method in Chapter 3" — AI searches text and transcripts. • Interview recordings stay private Journalists, researchers, lawyers — your sensitive recordings are transcribed entirely on-device. Nothing is uploaded. • All your project docs in one place PDFs, Word minutes, Excel spreadsheets, audio briefings — formats don't matter. Just ask "What was decided?" • Search across languages English PDFs, Japanese spreadsheets, Thai notes — language doesn't matter. Ask in English, get answers from Japanese documents. 25 FORMATS SUPPORTED Documents (PDF, EPUB, DOCX, XLSX, PPTX, TXT, MD, CSV, RTF, HTML), images (JPG, PNG, HEIC, WebP) with on-device OCR, audio (MP3, M4A, WAV, AAC, FLAC) and video (MP4, MOV, M4V) with on-device WhisperKit transcription. Scanned and copy-protected PDFs also supported. PRIVACY FIRST Text extraction, transcription, indexing — all happen on your device. Your original files and audio recordings never leave your device. With the local LLM option, your questions and answers stay on the device too — no document text, no question, no answer is ever transmitted. With Claude API mode, only your question and relevant text snippets are sent. No account, no email, no advertising IDs, no third-party trackers. The app does send usage statistics so we can improve it — they never identify you and never include your content, and our Privacy Policy lists exactly what they contain. ANSWERS WITH SOURCES AI automatically finds relevant sections and responds with source citations — document name and page number, or audio file with timestamp. Tap a citation to jump straight to it. Summarize, translate, analyze — any instruction works. COLLECTIONS Organize documents into folders. Switch chat scope by collection for focused Q&A sessions. Supports hierarchical structure (up to 3 levels). BUILT-IN VIEWERS View PDFs, Excel, PowerPoint, EPUB, images, and audio/video transcripts directly in the app with thumbnail previews and timestamp navigation. MODEL SELECTION Use your own API key to choose between Claude Sonnet 5, Haiku 4.5, or Opus 5. Or switch to the built-in local LLM to keep your documents and questions entirely on-device. Balance speed, accuracy, and cost to suit your needs. 8 LANGUAGES Available in English, Japanese, German, Spanish, French, Portuguese, Korean, and Chinese. SUBSCRIPTION - 1-week free trial included - Full access to all features during trial - Subscription begins automatically after trial ends - Cancel anytime SUBSCRIPTION DETAILS - Monthly and yearly plans available - Payment is charged to your Apple ID account at confirmation - Subscription auto-renews unless cancelled at least 24 hours before the end of the current period - Manage or cancel anytime in Account Settings Terms of Use: https://localrag.app/terms Privacy Policy: https://localrag.app/privacy