Tap-to-start plank timer
Start the timer with one tap and focus on form. Sessions are saved automatically with duration and estimated calories.
features
Plank King features
Everything this app can do — detailed, honest, and complete.
Plank Kingfeatures
Plank King
Plank King is a plank timer and plank challenge tracker for iPhone. Tap once to start the timer, hold your plank, and the app records the session — your longest hold, total time, and estimated calories. Training plans raise the target as you improve, a calendar view shows your streak, and Game Center leaderboards let you compete with other plankers worldwide.
Auto-progressing challenge plans
Structured plank plans raise the difficulty as you improve, from first 20-second holds toward multi-minute planks.
Calendar and longest-hold stats
A calendar view shows which days you planked, while stats track your longest hold and total accumulated time.
Game Center leaderboards
Compare longest planks with other users worldwide through built-in Game Center integration.
Apple Health integration
Plank sessions and calories sync to Apple Health, keeping core training next to the rest of your activity.
Why it works
More than just a list of features.
Here's why each of these capabilities was built the way it was, and what it means for your workouts.
One tap, then just hold
No setup before every session. Tap start, get into position, and the timer runs until you drop — the app handles logging.
Plans that grow with you
Training plans automatically increase hold targets as your core gets stronger, so a 30-day plank challenge never goes stale.
Compete on real leaderboards
Game Center leaderboards rank your longest holds against other plankers — useful motivation on the days willpower runs low.
Convinced? Download and try it free.
Start with the free trial and explore all features before committing. No credit card required.