I love this app although need some additional features

I have almost all the apps from jixipix. They are all have powerful features and are very simple. As I have trust to the quality of the products from the developer, I want suggest an additional feature in the future updates to this app in order to make this app unbeatable. It is an additional feature for ADJUSTMENTS on BRIGHTNESS/CONTRAST and VIBRANCE. Thank you!

nevadael about Simply HDR