The Garmin Tracker, along with the Garmin GTU 10, allows you to keep track of your kids and pets with real-time GPS tracking, navigation, and interactivity. However, though the app is free, the $200 device with service will cost you.

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Garmin Tracker, released for iOS and Android, works by communicating through AT&T's network with the tracking device. It lets you see what you're keeping track of via your typical smartphone map app, giving you turn-by-turn directions to your precious whatevers should they be lost, in trouble, stolen, or in need of a ride. And with the bonus geofencing feature, you can create boundaries on the map for what you're keeping an eye on, letting you know when those boundaries are crossed with a notification email. And that $200 are only for the first year. After that, you'll need to pay $50 for every year you use the service. [via AppBrain]