Enhanced Camera Application for iPhone 6 (iOS 12) in 16:9 Aspect Ratio

Hi, I’m looking for an app that can shoot photos direct in the 16:9 aspect ratio for the iPhone 6 (iOS 12.x). I already had such an app called ProCam for the iPhone 5 but this app seems not to work proper anymore on iOS 12. There is a newer Version called ProCam 8, but I had to buy it again. Is there an other alternative? I could only find apps that need newer iOS versions. Thanks for the help!