Well my friend installed the app and I found that it is not working as expected because he is using a Samsung Android phone with different built-in alarm clock. Because there is no standard API for calling the alarm (not until API 9 seems) and therefore the app need to relies on the package name and class name for calling the alarm. Anyway here fixed the Samsung and probably Sony phone.
Below is a change log in version 1.2:
! Fixed not able to launch alarm setting page on some Samsung, Sony Android phones
! Fixed possible crash when the alarm setting page is not found
! Fixed a bug in displaying incorrect 12/24 hour format when changing system language