Many thanks for your reply FLOOD
I'm using Android Samsung S7 Edge and my son has a Samsung S10. I am on the free version but did a trial before for the Premium version and did not update him to the Premium version for his phone when i did the trial. He didn't get any alerts when it was approaching time up on the time setting for both versions, I'm wondering if I need to turn something on for that to happen. It only tells him when the time is up.
Do you have any advice on the way KSK counts the time usage for the phone? if the screen is still switched on but the child is not using the phone, does it count towards the usage?