Yep can do other things on your phone while the alarm is ringing, just don't remove it from your background.
How? Do not swipe the app off from the multi-tasking screen Screen shown when you swipe up from the bottom to the top of your screen. If possible, it's best to swipe off other apps than Alarmify.
- Have in mind
Only when Alarmify is terminated in the background which means closed from the multi-tasking screen, alarm can't ring.
If this didn't work, contact us a mail via: Settings > Support > Assistance - or - Send direct email to firstname.lastname@example.org.
Please include the comment that you tried solutions in the FAQ already. It is the fastest way to get a proper support and fix your issue ASAP!