Install Zumis on Android
Open zumis.life in Chrome, tap the menu, then 'Install app' or 'Add to Home screen'. Zumis installs as a full-screen app and can ring for calls in the background once you allow notifications.

Help centre
Everything you need to install Zumis, keep calls ringing and get help from a human when something is wrong.
Open zumis.life in Chrome, tap the menu, then 'Install app' or 'Add to Home screen'. Zumis installs as a full-screen app and can ring for calls in the background once you allow notifications.
Open zumis.life in Safari, tap the Share button, then 'Add to Home Screen'. Launch Zumis from the new icon — notifications only work from the installed icon, not the Safari tab.
Chrome and Edge show an install icon in the address bar. A native desktop build is also available from the downloads page, with call deep-links and background ringing.
Check three things in order.
Zumis queues messages while you are offline and sends them when the connection returns. If a message stays marked as failed, tap it and choose Retry. The diagnostics panel in a call shows live network quality.
You can export or delete your account data from Settings → Privacy. Deletion removes your profile, messages and call history; it cannot be undone. If you can no longer sign in, request deletion from the public page at zumis.life/account-deletion.
Email support@zumis.life for help, or security@zumis.life to report a vulnerability. Zumis is operated by Ubora One Limited.