Just in time for the beach season, Runtastic has brought their app to the Windows Phone platform.

The app features lifelike avatars guide users through targeted core workouts, including over 50 instructional HD videos, customized programs and pre-built workouts – like The 7-Minute Workout, Shape Up, and Six Pack Junkie – perfect for the slim or shredded look at the beach.

The app features:

Male and female avatars take you through a variety of core exercises step-by-step

50+ HD instructional ab workout videos

Adaptable difficulty, three levels of a scientifically developed training plan

10 week Six Pack Plan

Pre-defined workouts, including: The 7-Minute Workout, Insanity, Shape Up, Six Pack Junkie and more

Voice Coach for easy-to-follow instructions: English, German, French, Spanish, Italian, Portuguese, Japanese, Chinese

Filter exercises for your personal fitness level

Absolutely no gym equipment required – use this abs workout app anytime, anywhere

Improve overall fitness, muscle strength & toning, stability and weight mgmt.

Track sixpack training sessions and overall progress using detailed graphs

Share fitness accomplishments on Facebook and Twitter

Upload your activities to Runtastic.com

The app is a free download from the Windows Phone Store here.