Starbucks is the perfect app for people who go to the mainstream coffee chain everyday. You can customize drinks, add different food to your favorite lists, add Starbucks cards for payment, and view rewards.
Using the app is like being in the store on your iOS device. There is so much information about all the drink and food options it's staggering. If you have other friends that enjoy Starbucks you can send them eGifts straight from the app.
Only for serious Starbucks coffee fiends.