Broken app since IOS update 8.4.1

Broken app since IOS update 8.4.1. I paid $20 for app 2 months ago and it worked for 1 month. Ever since I updated IOS software the app has been broken. It wont even open. Figured Lutron would have updated app with a fix since they charge $20 for app! Any way to get a refund for app purchase if they dont maintain the app?

ReidTwin1 about Lutron Home Control+ LEGACY