Freenove Big Hexapod app seems excellent!
I got the big hexapod for raspberry pi kit, and it took me 4 months of on again/off again tinkering to get it fully assembled and working. I have to say, Freenove support was excellent; they sent me a replacement controller board and 6 replacement motors when they saw my videos of how my fully assembled beast simply didn’t behave correctly. Also, on the client side, it took me trying with 3 different computers before I was able to get all the Python installations to work. But once all that happened, calibration went smoothly. And THEN I got to use the iPhone app to control the robot. And the app worked GREAT! It took one relaunch to enable the video feed, but other than that, I couldn’t ask for a much better interface. After *loads* of effort, I’m finally able to play with the thing! And the app is much more convenient controller than using a computer.