Sorry to hear you are having trouble.
Please contact us at support[at]mcleanmobile.com and we can help troubleshoot the issue for you.
The response from customers has been overwhelmingly positive and I am confident we will be able to help you.
Also, just to elaborate on the above point, you must remain in the app for the alarm to work. *If you leave the application the Alarm will not go off. *Apple does not permit the running of background processes for third party applications.