Hey everyone, I'm looking for a GPS tracker for my kid that they can use to call me. I've read a lot of reviews and still can't figure out exactly what I want. I'd prefer something I don't have to pay monthly for (no cell phone plan). These guys (mommyhighfive) mention the FiLip 2, which I've considered, or a flip phone prepaid plan which sounds ok, but I'm not sure that's what I want to do. Any recommendations?