Your AI companion that remembers everything
A privacy-first AI assistant that lives on your device. Memory that persists, voice you can speak to, a camera that reads. Works offline. Your data never leaves your phone without your permission.
Free forever • No account required • 10 AI answers/day
Three superpowers. One app.
Memory, Voice, and Vision — the features that make Prefy unlike any other AI assistant.
Memory That Grows With You
Prefy learns your preferences, remembers important details, and builds a personal knowledge base. The more you talk, the smarter it gets.
Voice — Just Speak
Whisper-powered transcription. Talk naturally, get instant AI responses. Hands-free, fast, accurate. Your voice stays on your device.
Camera That Reads
Point at receipts, documents, whiteboards, menus — Prefy extracts text instantly with OCR and understands context.
12 layers of memory. Like a real brain.
Most AI assistants forget everything after each chat. Prefy has a 12-feature memory system that learns, consolidates, and grows with you.
Long-term Memory
Facts, preferences, important dates — remembered forever
RAW Logging
Every interaction logged, searchable, exportable
Auto-Digest
AI summarizes your conversations into key insights
Fact Extraction
Automatically pulls facts from your chats
Knowledge Graph
Maps people, places, topics and their connections
Memory Consolidation
Merges duplicates, keeps memory clean and relevant
Timeline
Browse your AI history chronologically
Personality Profiles
Custom AI personas — professional, creative, casual
Profile Card
Tell your AI who you are — it adapts to your context
Proactive Agent
AI that suggests actions before you ask
Habit Tracker
Track patterns and build better habits with AI insights
Emotional Awareness
Adapts tone and style based on your mood
Everything else you'd expect. And more.
Calendar Sync
Create events, set reminders, check your schedule — all through natural conversation. Connected to Google Calendar.
Multi-Provider AI
Claude, GPT-4, Gemini — switch between the best AI models anytime. Bring your own key for unlimited usage.
Works Offline
On-device AI models. No internet needed. The most private way to use AI — period.
Knowledge Graph
Entities, relationships, connections — Prefy maps your world and surfaces insights you didn't know existed.
Usage Analytics
Track your AI usage, tokens spent, messages sent. Full transparency on what's happening under the hood.
Cross-Device Sync
Optional cloud backup. Your memory, settings, and chat history — synced between phone, tablet, and web. You control what syncs.
Connects to your whole life
Vote on which integrations we build next. Your voice shapes the product.
🗳️ In-app voting — users decide which integrations ship first
Bring Your Own Key
Have a Claude Max, ChatGPT Plus, or Gemini subscription? Plug your API key into Prefy for unlimited AI on any plan — including Free. Your key stays on your device and never touches our servers.
Privacy isn't a feature. It's the architecture.
Prefy is local-first by design. Chat history, memory, API keys, settings — all stored on YOUR device. Cloud sync is optional, encrypted, and you control every byte.
Local SQLite
All data in an on-device database you own
Zero Telemetry
We don't track, log, or analyze your usage
Optional Cloud
Sync only if you want. Delete anytime.
Up and running in 30 seconds
Open Prefy
No account needed. Just open the app or web version and start chatting.
Talk, type, or snap
Use voice, text, or camera. Prefy understands them all.
It remembers
Every fact, preference, and detail is saved. Next time, it already knows.
Stop forgetting. Start remembering.
Prefy is free to use, private by default, and gets smarter every day. No credit card. No account. Just open and go.