With interval training apps, your phone or tablet becomes your own personal fitness coach. Interval training is highly effective for burning calories, building muscle and increasing endurance. Since it varies your workout daily, you never get used to a single type of workout. Interval training apps are inexpensive and easy to use. They let you choose time limits, exclude certain activities and even track your progress.
1. Sworkit Pro
On iTunes: itunes.apple.com
Sworkit Pro is one of my favorite interval training apps. The exercises are built-in and range from beginner to advanced. It even has yoga and stretching built in. You can customize your workouts or pick from Sworkit workouts. Every exercise is randomized and it tracks your progress. All exercises include videos so you know you're doing them correctly. The pro version is $3.99, but you can try the Lite version for free to see if it's right for you.