---
title: "About Curfew"
description: "Why Curfew exists and who makes it."
canonical: "https://usecurfew.app/about/"
---

# About Curfew

Curfew is a sleep app for iPhone and Mac. Both versions do the same core job: they block the screen habits that keep you awake after the bedtime you chose. The block starts every night on its own and ends in the morning.

The iPhone app uses Apple's Screen Time system to block the apps and websites you choose. The Mac app covers every display and Space, so there is no other window to switch to. They are separate apps because iPhone and Mac need different forms of blocking. Neither app depends on the other.

## Why we made it

Most blockers still leave an easy way out. You can dismiss a limit, open a different app, or move to another screen. Curfew adds enough friction to make going to bed easier than finding another loophole. It also keeps an emergency way through when you truly need your device.

## Who makes Curfew

Sentium Inc. builds and publishes Curfew. We make small tools that solve one clear problem. Curfew has no ads. Your blocking choices and activity stay on your device. Read the [privacy policy](/privacy/) for the full details or email [contact@sentium.one](mailto:contact@sentium.one).