Plank - 30 Day Challenge app for iPhone and iPad

It is an application that supports Plank for 30 days.The main function is to count Plank seconds once a day.

Main function
・Planks countdown.
・Achievement days management.
・Plank count up mode. (after achieving 30 days Plank)

Active Energy
・Ex. METs 2.8, Weight 50 kg, Time 10 min. (2.8 - 1) x 50 x (10 / 60) x 1.05 = 15.75 kcal.

Optional permission requests
・Apple Health: It is used to record data in Apple Health.
・Tracking: It is used to deliver personalized ads to you.
・Notifications: It is used to sending notifications.

Languages
・Japanese, English.