APK for organisation

I'm currently working on a project where we want a android device to lock when taken away from its power source
I have purchased the app from the play store on my personal device and tested and does what we require

I need to install  on 40 devices and we are managing them using Intune- looking at this think the best way would be via APK

Is there also a way that we can transfer the task between devices?

Is the an email i can contact you on for support?