With the Mini, I've been using 3rd party apps much more than the Fly app. Litchi/Maven/Red Waypoints. I enjoy learning the ins and outs of the apps. For me they all have different features (for the mini) that set them apart from each other from Waypoints, to Follow, Panoramas, Virtual Reality and Orbit etc.
As per
@PhiliusFoggg and his question of "controlling speed during a circle", I especially like Mavic Maven, an 3rd party app that along with WPs, FPV etc., has a new feature called CoPilot. It's like "Quickshots" for mini's on steroids! You can easily set up and turn an Orbit/Circle into a spiral or matrix by controlling circle radius, speed, direction, altitude, and even the POI and camera orientation while flying.
In Maven's CoPilot Mode there's also a CableCam function that is like Fly's "Quickshot's Dronie" but again, being on steroids, while flying, you can easily change speeds, direction, altitude, POI and camera orientation etc.
One word of caution, today I was quickly trying out a new update in the CableCam mode in a small area and forgot how that while in the cablecam mode the speed of the mini keeps increasing/decreasing with stick input. With the stick returned to neutral the mini remains at the last speed until you give it reverse stick. So in your first few flights just be aware that with no hands on the stick it doesn't brake like we're used to. It keeps on going "along the Cable" at the same constant speed until you apply stick in the opposite direction to slow or stop or reverse direction. Try using little stick bumps and release to increase/decrease speed/altitude and let the "CoPilot" control the orientation and camera at the POI.
Here's a link to -
Maven – For DJI Drones – This App will let you fly your DJI™ Drone like never before! - if you want to check the app and it's features out. Has anyone else with a mini tried it out??