Alarm App With Multiple Snooze Buttons

A simple alarm app (Similar to android's stock alarm app) with the below additional features :: 1. User should get 3 buttons for snooze (one with 5 Minutes, one with 10 minutes and one with the custom snooze time selected at the time of alarm creation) 2. User should able to change the snooze time for the above 3 buttons as per his/her wish (This should be paid feature) 3. User should be able to add/remove snooze button options (Min : 1, Max : 5) (This should be paid feature) 4. User should be able to select an alarm tone from his/her music library (This feature covers in the first line [feature similar to stock spp], still wanted to mention it specifically)