Get HushUp Beta

Private messaging on your terms

End-to-end encrypted chat, voice and video calls, and groups. Nobody but you, not even us, can read your messages. Protected with post-quantum encryption, so it stays private even against tomorrow's computers.

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Open HushUp on Android
Android 8+ · Chrome Free · No store needed

Install in 3 steps

  1. Tap Open HushUp on Android above (it opens in Chrome)
  2. When it loads, tap ⬇ Install HushUp as an app, or Chrome menu ⋮ → Install app
  3. HushUp lands on your home screen like any app, tap to launch full-screen
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iPhone & iPad

On iPhone & iPad, open HushUp in Safari and add it to your Home Screen in three taps, its own icon, full-screen, one tap to launch. No App Store, no Mac.

Open HushUp in Safari
iOS 16+ · Safari No App Store · No Mac

Install in 3 taps

  1. Open HushUp.hush-ai.uk in Safari (not Chrome) on your iPhone or iPad
  2. Tap the Share icon, the square with an upward arrow in the toolbar
  3. Choose Add to Home Screen, then tap Add

iPhone has no install button, the three taps above are how every web app is installed on iOS.

Or use it in any browser

No install needed, open HushUp from any browser, on any device.

Open HushUp

What you get

End-to-end encrypted messages
Voice & video calls
Group chats & group calls
Disappearing messages
Files, photos & voice notes
Post-quantum encryption
End-to-end encrypted Post-quantum (ML-KEM) We can't read your messages

HushUp is in beta, an early public release we are still polishing, so expect the occasional rough edge. It is a web app you install straight from the browser, there is nothing to approve in an app store and updates arrive automatically. A web app is not as hardened as a signed native app, but everything you send is end-to-end encrypted on your device first.