NEW YORK (TheStreet) -- Fitbit (FIT) - Get Report stock is up 4.36% to $30.17 in pre-market trading on Monday as the company's fitness tracking app holds the top spot within Apple's (AAPL) iTunes App Store's health and fitness category, and second spot overall within the free apps category.

Fitbit's app jumped 20 spots to be the top app in the iTunes App Store on Saturday, the day after Christmas, according to Engadget.

The surge in downloads indicates that many users are likely setting up their Fitbits and installing the app for the first time. 

Fitbit is the industry leader in wearables at 22%, Engadget adds.

Based in San Francisco, Fitbit is a provider of health and fitness products.

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