iOS 9 broke something in the framework we're using for the ClearCheckbook app. We tried updating it but apparently xCode/Apple deprecated a lot of stuff that our app's framework relied on and we can't simply issue a 'quick fix'. We'll need to actually rebuild the app which needs to be outsourced and will take some time to do. In the meantime, I'd recommend using the mobile optimized website from the browser on your phone. Simply go to clearcheckbook.com from your phone's browser and you'll have access to the full site, optimized for a smaller screen.