On your phone

Take it with you.

Today: install it from your browser

Hearth is a real installable app already. It gets a home-screen icon, opens without browser chrome, and keeps working offline — a draft you type on a train is encrypted on your device and syncs when you have signal again.

• iPhone / iPad: open app.usehearth.ink in Safari, tap Share, then Add to Home Screen.
• Android: open it in Chrome and tap Install — or Menu → Add to Home screen.
• Mac / Windows: Chrome and Edge show an Install icon in the address bar.

Soon: iPhone and Android apps

Native apps are being built — Face ID and fingerprint unlock, widgets, share-sheet capture, and exactly the same on-device encryption as the web. They are not in the App Store or on Google Play yet, and we would rather say so plainly than put up a badge that goes nowhere.

Want to know the day they open? Start a Hearth account and turn on “tell me when the apps land” in Settings → Companion. That is one email, once, with a one-click unsubscribe in it — and nothing else ever goes to your address without you asking for it.