It's not compatible with the storm yet. Hopefully it will be soon. I had it on the Curve also and really miss it. I have emailed them to express my interest in the alarms for the Storm.
I have emailed the developer via their website and the first reply I received in early January said in about a week they would have it available. Well I have emailed them several more times and get no reply.
This is the second time BBSmart claimed an update was coming for an app I purchased then poof nothing and no reply. I enjoy their apps but if you are going to offer a date (I would have understood if they said no date for obvious reasons) but they did and they have have. So what is the benefit of free software updates if developers never actually offer updates?