I don’t know all the features of that app, but one possibility might be the IFTTT presence app combined with A virtual presence sensor that can be turned on and off like a switch.
We used this for a while for the girlfriend of one of my housemates because it doesn’t have any of the tracking features like life360 which would’ve been too intrusive. It just turns on when you enter a specific area and turns off when you leave it again. And doesn’t give any access to SmartThings itself.
The person does have to put the IFTTT app on their phone, but that’s it.