Reef — hand over your phone, not your whole phone.

Handing your kid your phone hands them everything.

One tap and they can wander into your messages, the App Store, random videos, the open web. The built-in tools aren't much help either: Guided Access locks the whole phone to a single app, and Screen Time is a settings panel, not a place a child wants to be. Reef fills the gap — a friendly, contained space a kid can play inside and can't wander out of.

A hub they live in, not a wall that blocks them.

Reef

Parental Controls · Screen Time

Tap Start, hand it over, and only you can get back out.

• Every other app locks the moment Reef starts — nothing else opens
• A contained hub of the built-in games and kid-safe sites you choose
• Websites open in a locked browser pinned to one site — links out are blocked
• A profile per child — "Homework," "Road trip" — started in one tap
• Only you exit, with Face ID or a PIN; no ads, no accounts, works offline

Coming soon to the App Store

Built on Apple's Family Controls — entirely on your device.

Reef uses Apple's Screen Time framework to shield every app except the ones you picked, all on your iPhone. Your child opens a grid of activities and stays inside it: tap one, play, close it, and they're right back at the hub — never out on the Home Screen. When they're done, turning Reef off needs Face ID or your PIN (with a device-passcode fallback and a brute-force lockout). Your app and site choices stay private — even we can't see them.

The ZET pattern: saturated market, mediocre incumbents, out-built on craft.

Common questions