I Checked is a progressive web app. You install it straight from your browser — no app store, no account, nothing to sign up for. Once it is on your device it opens from the home screen like any other app and keeps working with no connection at all.
Open app.ichecked.app, then follow the steps for your device
Opened the link inside a messenger or a social feed? Use that app’s menu to choose “Open in Safari” first — in-app browsers cannot install web apps.
Chrome often offers an install banner at the bottom of the page as well. Tapping it does exactly the same thing.
Safari on macOS installs web apps through File → Add to Dock. Firefox cannot install them at all — I Checked still works in a normal tab.
You are most likely in an in-app browser rather than Safari itself. Open the page in Safari, tap Share, and scroll the list of actions down — the entry sits below the row of apps.
Chrome hides it when the app is already installed, so check your home screen first. It also needs the page to be open at https://app.ichecked.app rather than a copy of it.
Treat them as living on that one device. Removing the installed app can clear its local storage, so export a backup from Settings before you reinstall or switch phones, then import it afterwards.
No. There is no account, no email, and no sign-in anywhere in I Checked — installing it is the whole setup.
I Checked is a web app today, and the whole product is built that way. If enough people ask for native builds, we will make them — write to support@ichecked.app.
Open I Checked in your browser and install it on your home screen. No store, no account, nothing to sign up for.
Open I Checked