Install Helixius
Tap the Share icon (in the toolbar or the ⋯ menu), then choose “Add to Home Screen”.
Install with Chrome
Samsung Internet can’t complete app installs right now — Android blocks the package it creates. Open this page in Chrome and tap Install app there instead.
Install didn’t finish
The installation was cancelled or blocked by your device. You can try again, or open this page in Chrome and install from there.
No Chrome on this phone? Use the browser’s ⋮ menu → Add page to Home screen for a shortcut instead.