We added an extra UI for our users. Photon by Xylight is an interface with a sleek, modern look and has all the bells and whistles you would need. Moderator tools included! You can access the UI from https://photon.lemmy.world.
Visit Photon's project page on github or get in touch with the developer in the !photon@lemmy.xylight.dev community. If you want to use photon on other instances you can do so from https://phtn.app.
Oh yeah actually Alexandrite is not really suited for mobile. The developer is working on improving the mobile experience but it's main focus is desktop.
BIG EDIT: Actually @sheodox@lemmy.world just released an update and it now looks pretty frickin sweet on mobile with a new cards layout.