Basically, you can't street race or head to the mall when you say you're going to do homework, because Mom and Dad will know.
Location and speed tracking
Hum, which costs $14.99 per month, includes a module that plugs into a car's OBD port and a handsfree unit that can clip to a visor. Between the two — plus a smartphone app — the service offers vehicle health monitoring, roadside and emergency assistance, and stolen vehicle tracking. In addition to the location and speed alerts, this month's update will enable location tracking (a small expansion of stolen vehicle tracking) and a driving log, which measures travel times, engine idle times, and average speeds.
The product competes in a growing market for add-on connected car systems, including competitors like Automatic and Vinli, both of which use the OBD port like Hum does. All are banking on slightly different business models and degrees of functionality, though: Automatic relies on your phone's cellular connection and has no monthly fee, while Hum has no upfront equipment charge. Vinli, meanwhile, runs $199.99 upfront plus a variable monthly fee — but offers an LTE connection and in-car Wi-Fi hotspot, which Hum does not.