What Claudia is
Claudia is a calm, private AI assistant for your phone. She talks like a person. She remembers what you ask her to remember. She runs on the AI providers you already pay for — Anthropic, OpenAI, Google, and others — without an extra subscription on top. No accounts. No servers holding your conversations. Your chats live on your device.
What Claudia does well
Real conversations, by voice or text
Tap the mic and talk. She listens, thinks, and replies in a natural voice — the kind that doesn't sound like a robot reading a teleprompter.
Captures the things you'd otherwise forget
Reminders, notes, plans, follow-ups. Ask "remind me Thursday" and it's done.
Reads the room
Claudia adapts to how you write, what you've told her about yourself, and what kind of answer the moment calls for — quick reply, deep research, or a clear plan.
Researches without losing the thread
Need today's news, a price check, a quick fact? She'll search the web, cite sources, and pull the answer back into your conversation.
Handles documents and images
Share a photo, a PDF, a screenshot — she'll read it, summarize it, answer questions about it.
Premium voice, your choice
Use the built-in iOS voice for zero cost. Connect ElevenLabs for the kind of voice quality you hear in podcasts.
What makes Claudia different
- Bring your own AI key. No monthly Claudia subscription. Use the API key you already have with Anthropic, OpenAI, Google Gemini, xAI, Groq, Cerebras, or OpenRouter. Pay them directly for what you use. No middleman markup.
- Built for privacy. Your conversations don't pass through a Claudia server, because there is no Claudia server for them to pass through. The app talks directly to the AI provider you pick.
- On-device memory. The things Claudia remembers about you live in encrypted storage on your phone. Delete them in one tap.
- Made for the moments AI feels useful, not invasive. Claudia doesn't push notifications you didn't ask for. She doesn't summarize your screen behind your back.
Claudia is built by PrentusAI, a small, independent shop in New York. We don't sell your data because we don't have it. We don't run ads because we don't need to. You bring your own AI key, the app stays out of your way, and that's the whole deal.
More about Claudia
Support
Setup help, FAQ, and how to reach us if something isn't working.
Open support →Privacy Policy
What Claudia stores, what stays on device, and what may go to configured providers.
Read privacy →AI Services and Data Providers
Every third-party service Claudia can be configured to use, with links to their privacy policies.
View providers →