It is doing a strange black screen thing, and randomly opens by itself (other reviews have mentioned this) and I suspect it is making my phone crash. My phone is crashing several times a day, when I remove the app it stops crashing. I hope there is a fix for this. It works just fine on my tablet, but not my phone. It's a great app due to its simplicity. I switched to another planner app today and will be requesting a refund.