@Peter_Bittner Hey mate, I have been using Locative for presence and it has been 99.99% reliable. A couple of glitches at time. You can setup quite a small radius, too. I also use it to turn on the garden lights when I arrive home in the night time.
See a proper step by step guide here: IOS Presence app (locative)
Indeed, you need to have one more app in your iPhone but at least you are not at the mercy of Athom updating firmware and have a nice app like Smart Presence not working anymore.
P.S. I f I setup the radius to the maximum on Locative I might reach Aspendale (I live in Mentone 
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