What's a good Android app for making training videos for new nurses at the clinic, without needing a whole film crew?

Okay, so I'm usually too tired to learn complicated apps after a 12-hour shift, but KineMaster is pretty straightforward. We're trying to make some quick training videos for new nurses about things like setting up IV pumps and using the new charting system. KineMaster lets me stitch together clips, add text overlays, and even throw in some royalty-free music without a ton of fuss. It hasn't crashed on me once in the last six months, which is saying something. I can even review and edit footage during my commute on the train. It's not Hollywood quality, but it's perfect for getting the information across clearly and quickly. Plus, no complicated software to install on the hospital computers! It's like having a pocket video editing suite that actually works when you need it.