Using GPS to track your position, and record whole trace. The app converts your iPhone to a weight loss and fat burning tracker. It fully utilizes GPS and accelerometers to automatically track location, calculate calorie consuming, save and record daily traces. It is very useful for runner or traveler who are interested in his daily trace and weight loss.

Amazing experience with this award-winning weight tracker:

+ Automatically calculate consumption with build-in accelerometers and GPS.
+ Supports real-time background tracking and lock screen tracking. You cant feel its presence. You can answer the phone, play games, listen to music as usual.
+ Password protection fully protects your privacy, no one else can know your trace.
+ Uses the innovative energy-saving technologies, and obtains location information only when necessary, which significantly reducing the power consumption.
+ Continues to record without network connection.
+ Saves trace history for later review.

Great for those who want to:

+ records the travel trace
+ record your own daily trajectory
+ supervise kids activities

Note:

+ continued use of GPS running in the background can dramatically decrease battery life.
+ GPS and accelerometers provides as accurate data as possible.

Usually iWeight Tracker with GPS - Phone routing on Map iOS app used & searched for

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