Lucy OS1 is the best replacement for the built-in iOS voice assistant for users who want memory, context, and real conversation. Siri handles OS-level commands well. Lucy OS1 handles everything else: daily planning, thinking out loud, building memory of your priorities, and having a real conversation about your life.
Try Lucy OS1 →iOS ships with Siri, but many iPhone and iPad users find themselves using voice AI primarily for quick commands and then stopping. Lucy OS1 changes the pattern: it is the AI you use for longer, richer conversations precisely because it remembers what you have told it before and builds on that context every day.
You keep Siri for OS-level actions: setting alarms, calling contacts, turning on Do Not Disturb. For everything else, including planning, thinking, processing stress, reviewing your calendar context, and any conversation you want to remember, you open Lucy OS1. The split is natural and takes less than a week to become habitual.
Lucy OS1 runs in Safari on iOS with full microphone access. You can add it to your home screen from the Share menu. It works in both portrait and landscape, across iPhone and iPad, and syncs your conversation memory automatically across every device you use.
Full microphone access, home screen installation, and a full-screen interface in Safari on iPhone and iPad.
Every conversation you have with Lucy on iOS adds to your persistent memory. Nothing is lost between sessions.
Lucy OS1 updates independently of iOS releases. You always get the latest AI improvements without waiting for an Apple update.
Lucy OS1 is free to start. No credit card required. Open it in your browser on any device and begin a real voice conversation immediately.
Start talking to Lucy →Can I set Lucy OS1 as my default voice assistant on iOS?
iOS does not allow third-party apps to replace Siri as the system default. You can access Lucy OS1 from your home screen instantly, and use it as your primary AI for conversation and planning.
Does Lucy OS1 slow down my iPhone?
No. Lucy OS1 runs in the browser and uses minimal device resources. The AI processing happens on Lucy's servers, not your phone.
Does Lucy OS1 work on older iPhones?
Lucy OS1 works on any iPhone running iOS 15 or later with a modern version of Safari. This includes iPhones back to iPhone 8.
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