What you need to know about Spirit Airways mobile apps
Spirit Airways has an Android app that works with most Android tablets, phones, and some Android Wear devices. How can you use the Spirit Airways mobile app? While it has many features, you'll probably just use it to find and book flights, manage exisiting reservations, or get through security with your mobile boarding pass via the app.
For Spirit Airways Free Spirit members, you'll be able to manage your account from the app, though using their website will no doubt provide more functionality
Also take a look at Spirit Airways's website by clicking here — you should be able to do what you need there.