I use Google maps you can share your location between any android or iPhone device. So its the most compatible location sharing app but I don't think it gives any alerts so you would need to check manually.
bit of a late reply but there's a "Find My Mobile" feature that i've been using for years now for my Samsung Devices...basically all you need is a Samsung Account that is logged in onto the device you wish to track & you're good to go! I even have a widget added to my home screen (forgot how i did it) that when you click on it takes you to a settings "menu" which lets you redirect to the main website from which you can track. https://findmymobile.samsung.com/