When I set a regular alarm in BBSmart Alarms Pro and it alarms, it always alarms a second time, one minute later.
I have it set up as a recurring alarms. In the alarm settings, I DO NOT have either vibrate or Silence When Unholstered checked. I have the "Snooze Length" set to 10 minutes.
My problem is the repeated alarm, one minutes after the original alarm was acknowledged.
I have not tried the snooze setting of 10 minutes. I have mine set at 5 minutes. Try setting it to 5 or 15 to see if it makes a difference. If they perform correctly, then it could be a bug with the 10 and 1 digit. If so, this should be reported.