Your options are pretty wide open when it comes to personal GPS trackers, but Xact Technology is hoping to catch your heart by promising no monthly fees for its XACT | TRAX. Hailed as an ideal solution for keeping tabs on pets, loved ones, movable property, etc., the GPS tracking module relies on a proprietary, web based portal in order to see where your subject is and to set "geo-fences." Location requests can be sent via the web or SMS, and readouts are provided on an easy-to-read map along with physical address, date and time. Sadly, we've no price to share, but at least you can rest assured that the cost of entry is it.