The 10 hottest free fitness apps for fall

A new season means the need for new fitness wear. Style your fall workout wardrobe with Catalog Spree, which features more than 245 catalogs and over 140 brands, including Nordstrom, Merrell, Title Nine, Foot Locker, Patagonia and many more. Mark your favorite items, sort them into a fitness collection, share with your friends via Facebook or email, and buy straight from the app!

Stay motivated to run by mapping your routes, logging your food intake, tracking your activities and connecting with friends — all with the MapMyRUN app.

When the weather turns frigid, FitnessClass will give you access to hundreds of exercise videos that stream right to your iPad! Videos include everything from kettlebell workouts and kickboxing to step, yoga and more!

Cooler weather means hot chocolate, warm muffins and comfort food — oh my! Download MyFitnessPal to keep you accountable to your calories and help you stick to your diet plan. With a database of over 1.5 million foods, MyFitnessPal will help keep you on track regardless of the season.

No need to break the bank hiring a personal trainer. With Nike Boom, all you have to do is choose your type of workout, length of training, best workout music and favorite Nike athletes. The app gives you blasts of motivation from the athletes you select, pushing you to exercise harder while listening to your favorite songs.

Want to measure your heart rate? Let Instant Heart Rate take your pulse. Just place the tip of your index finger on your iPhone's camera and in seconds, you'll get a heart rate reading.

Nothing better than a yoga instructor wherever you are! This yoga app gives you 20-, 40- and 60-minute yoga routines with a certified personal trainer demonstrating each pose. Simply choose your workout and enjoy it in the comfort of your own home — or wherever you happen to be.

Just because your outdoor fall workouts don't leave you sweating like summer exercise, you still need to stay well-hydrated. Waterlogged can help you track water intake by simply snapping a photo of your favorite water bottle.

Sick of the same playlists on your iPod? Tune in to Pandora to get instant access to millions of songs that can complement any workout, from the most intense kick boxing session to a relaxing restorative yoga practice.

The 6 Pack isn't free — but the 99 cents is beyond a bargain when you consider that this torso-tightening app delivers over 100 abs exercises and the same six-pack workouts that keep today's athletes in shape.