On-device AI for iPhone

Intelligence
you own.

Stealth is an AI assistant that runs entirely on your iPhone. Chat, talk, point your camera, record and summarise, with no account and no cloud.

Download on the App Store
The promiseData not collected

We never collect your data. Not your words, photos, recordings, location or contacts, and not even analytics. There's no account and no Stealth server. Everything Stealth knows stays encrypted on your iPhone.

What it doesVersion 2.0

Talk, show, ask

Chat with Apple Intelligence or an open model running on the iPhone's chip. Hands-free voice mode with natural speech. Point the camera and ask.

Remembers, with consent

Keeps the preferences and projects you approve, and only brings them up when they matter. Review, pin or forget anything.

Your files and recordings

Ask about your PDFs and notes and get cited answers. Record a meeting and get a transcript and summary, all on device.

Gets things done

Reminders, calendar events and timers, always confirmed by you first. Ask what's on your calendar.

Works with no signal

Optional offline packs: 23 validated survival and first-aid guides, and 58,000 Wikipedia medical articles. A Field Kit with GPS, compass and an SOS light.

Private by design

AES-256 encryption, Face ID lock, and a network ledger that lists every request the app has ever made.

When it goes online

Only to download a model or knowledge pack you choose, from Hugging Face. Those requests carry the file name and nothing about you. You can see each one in the app, and check them independently in iOS's App Privacy Report.