We will use the Apple Camera, Camera+ 2 and ProCamera (with in-app purchases of VividHDR and Low Light+) for activities. The Macro Mode of Camera+2 and manual focus with burst mode will be effective. ProCamera will show details in the shadows while keeping details in the highlights on a bright sunny day. Of course I'll look for opportunities to use Slow Shutter Cam for motion blur (very effective for scenes with water).
Using different camera apps lets us also experience different file formats. Maybe HEIF for Apple Camera and Camera+2 and TIFF for ProCamera and Slow Shutter Cam. Are you interested in post processing? Camera+2 can shoot RAW (just not macro at the same time) and it has a RAW processing editor.