On your device, open Settings → Apps → Install unknown apps and allow it for your browser.
Tap Download APK above, or scan the QR code with your phone's camera.
Open the downloaded file and confirm the install when prompted.
Stable vs. Beta ›
Stable is the recommended channel for everyday use. Beta gets new features and fixes earlier, in exchange for the occasional rough edge — switch back to Stable at any time by installing that APK instead.