Why wake up to a boring alarm clock when you can now wakeup to the voices of (your possible ‘waifu’) Emilia and Rem from the hit series, Re:Zero! The app features over 90 recordings allowing users to customize their morning wakeup greeting. Unfortunately unlike the Asuna app, the images are static but features over 30 character images. 

Currently the app is only available in Japan for Android and iOS for 720 yen.
http://re-zero-app.jp/