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.
A BigBeeFit appLive on the App Store
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.
App details
Plank Challenge Tracker App
Category, age rating, privacy state, and compatible devices below come from the live App Store listing.
Free · In-App Purchases · Designed for iPhoneHealth & FitnessAge 9+Privacy: Data Linked to You + Data Not Linked to You
Latest releaseVersion 26.4.27 · Apr 27, 2026
Minimum OSiOS 18.5+ · macOS 15.5+
LanguagesEnglish + Simplified Chinese
DevicesiPhoneMac (Apple Silicon)
SupportsGame Center
BundleIncluded in Home Fitness & Prisoner Fitness
Why it works
Designed around one simple idea.
Every feature in this app exists to support one goal: make your fitness habit as easy to keep as possible.
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.
Key features
What you get when you download.
Here are the features that matter most. See the full feature list for everything included.
Tap-to-start plank timer
Start the timer with one tap and focus on form. Sessions are saved automatically with duration and estimated calories.
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.
Who it's for
Who this app is built for.
Find yourself in one of these? This app was made with you in mind.
People doing a plank challenge
Following a 30-day plank challenge from social media? Plank King gives it a timer, a calendar, and a progression plan that keeps counting after day 30.
Desk workers building core strength
A plank takes two minutes and zero equipment. The app makes the daily habit measurable, so it actually sticks.
Competitive plankers
If a leaderboard is what gets you to hold five more seconds, Game Center rankings are built in.
Pricing
Start free, upgrade if you love it.
Transparent pricing with no surprises. All BigBeeFit apps start with a free trial or a free download — upgrading is always optional.
Free download
Free
Start on the App Store
Plank King is free to download. Start the timer, log sessions, and follow your calendar progress without paying.
- Tap-to-start plank timer
- Calendar progress view
- Apple Health sync
Premium options
See current App Store prices
Monthly, six-month, or bundle
The current listing shows a monthly subscription, a six-month subscription, and the Premium Plus Bundle. Check the live App Store page before subscribing.
- Monthly subscription
- Six-month subscription
- Premium Plus Bundle
FAQ
Frequently asked questions.
Quick answers about how the app works, what's free, and what syncs where.
How long should I be able to hold a plank?
For most people, 20–30 seconds with perfect form is a solid start, 60 seconds is a good everyday target, and 2+ minutes shows strong core endurance. Plank King's plans raise the target gradually instead of jumping straight to long holds.
Is Plank King free?
Yes — free to download, with the timer, session logging, calendar view, and Apple Health sync included. Optional subscriptions unlock more; check the live App Store listing for prices.
Can I do a 30-day plank challenge with this app?
Yes. The training plans auto-increase difficulty day by day, the calendar tracks your streak, and leaderboards add accountability — everything a 30-day challenge needs.
Does Plank King track calories?
Yes, each session logs estimated calories burned along with the duration, and both sync to Apple Health.
Ready to get started?
Download and start your free trial today. No commitment — try it and see if it fits your routine.