KineMaster can be installed on any iPhone or iPod touch running iOS 12 or higher, or on an iPad iPad OS 13 or later.

You can find the version of iOS your iPhone, iPod touch, or iPad is running by following the steps here:
https://support.apple.com/en-us/HT201685 

If your iPhone or iPod touch is running a version of iOS below 12, you won't be able to install KineMaster. If your iPad is running a version of iPad OS below 13, you won't be able to install KineMaster.