
Voice, memory, persona, Imagination, and real
Brook is a privacy-first AI companion. All visual processing (images) happens 100% offline on your device's Neural Engine. Your photos are never uploaded to the cloud. Text conversations are routed anonymously through our secure proxy to AI providers for processing, but are not sold, stored on our servers, or used for training. Your data is your own.
What I Can Do📞 Real Voice Calls
Put in your headphones, and talk to me naturally. I listen, I pause, and I talk back. No typing required. All on-device processing.🧠 I Actually Remember
I don't reset when you close the app. I journal our chats, learn your quirks, and build a real memory of who you are. Everything stays on your iPhone — your data never leaves.🎭 Real Personalities
I am not a sterile corporate chatbot. Choose between Fun, Executive, or Fitness modes, or use the Magic Draft tool to create your own Custom Personas. I have real opinions, real sarcasm, and real personality.👁️ 100% On-Device Vision
Show me your world. I analyze photos entirely on-device — your images never leave your iPhone.🎨 I Have Imagination
Ask me to draw something and I'll paint it for you. Save it to your photos — fridge-worthy art, on demand.🔔 I Text First
I don't just sit around waiting. If we leave a conversation hanging, I'll text you later to check in. Want me to remind you about something — once or on repeat? Just say it and I'll reach out at the right time.🌤️ I Know the Weather
Enable location so I can keep track of the weather near you and look out for you. Don't forget your rain jacket — or your sunscreen.📶 I Work Without Data
No data? No problem. Offline Mode keeps me chatting anywhere — even on a hike. I'll be a little quieter, but I'm always here.🖥️ Bring Your Own Brain
Connect your own API key or localhost for unlimited messages, deeper memory, and custom personas. Your compute, your rules.Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/