The native iPhone 6/6S+ camera is fantastic.  Achieving stellar results from your captures is more than possible.  

But, do you need a camera replacement app to use in place of the native camera on your iPhone? Look no further than ProCam 3 from Samer Azzam and Team.  Check them out at the link below. Get ready to elevate your mobile photography to the next level with ProCam 3.

"ProCam 3 offers unparalleled control and quality with DSLR-like camera functionality and full featured photo / video editing capabilities." - ProCam 3 Team.