Russet: Private Offline AI App - App Store

Russet is a private, lightweight AI companion for iPhone and iPad, powered by Apple Intelligence. All chats run fully on-device by default, with no accounts, no ads, and no tracking. Russet also includes additional local AI models with strong reasoning capabilities, optimized to run completely offline. If you choose, you can bring your own OpenAI API key to access cloud models like GPT-5.1 and GPT-5 mini, all in one app. Chat or read and write faster with Flow. Manage your Calendar, Contacts, Files, and Health data using powerful offline agentic tools. Explore interactive text-based adventures in Game. No internet required. Completely free. Like the russet potato, Russet works anywhere, anytime. Start conversations with intelligent Templates that integrate deeply with your system. Get instant daily, tomorrow, or weekly briefings based on your real calendar events, all processed privately on-device. Drop a PDF into chat and Russet will read it, extract key information, and answer your questions. Files never leave your device. Customize how Russet responds by adjusting creativity, tone, and guidance. Lock private chats instantly using on-device biometrics. Branch conversations to explore new directions without starting over. Use Flow to summarize, label, debate, translate, or rewrite text with a single tap, even offline. A clean, native interface designed for privacy, focus, and flow. Intelligence that works when and where you need it. Features • Privacy-first: On-device by default. If you enable cloud models with your own API key, requests go directly to the provider and are never stored or accessed by Russet’s developer. • Intelligent Templates: Instant briefings powered by your real calendar data. • Flexible chats: Customize response style, choose models, branch or lock chats, and analyze PDFs. • Agentic tools: Manage health data, schedules, contacts, and files through system-aware automation. • Flow: One-tap tools for summarizing, rewriting, debating, labeling, and translating text, fully offline. • Game: Create and explore interactive text-based stories. • Offline-ready: Works without an internet connection. • Polyglot: Supports 13 written and spoken languages. Requires Apple Intelligence. Optional: bring your own OpenAI API key for cloud models.