Plank Workout - 30 day plank app for iPhone and iPad

You can discover your way to perfectly flat abs and a strong core by holding a push-up position for several minutes with several combinations. This app will guide you through 10 levels which are increasing, training your body to gain strength. If you can get different types of planks, no other physical exercise is needed, as the plank makes every single muscle in your body work.



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You can get unlimited access to all workouts monthly USD$6.49 for 1 month or USD19.99 for six-month subscriptions.
And of course, you can choose one-time purchase USD$41.99 for lifetime access
Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
The account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal
Subscriptions may be managed by the user and auto-renewal may be turned off by going to the users Account Settings after purchase.
Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.