KineMaster can be installed on any iPhone or iPod touch running iOS 14 or later, or on any iPad running iPadOS 14 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

iPhones, iPads and and Apple computers with an M1 or M2 chip can run KineMaster. M1 and M2 iMacs, MacBooks, and Mac minis can run KineMaster windowed as though they were iPad Pros (3rd generation) running the latest iPadOS.