What you need to know about Allegiant Air mobile apps
There is an iOS app from Allegiant Air which will work on your iPhone, iPod, or iPad. Allegiant Air has an Android app that works with most Android tablets, phones, and some Android Wear devices. Perhaps standard practice these days, the Android app offers the same functionality as the iOS app from Allegiant Air.
If you're just looking for their mobile site, you can head on over to http://www.allegiantair.com on your mobile device.