Camera Plank Timer for iPhone
Get into plank position in front of your phone, and the timer starts counting the moment you're actually holding it — not the moment you pressed a button.
How it works
Wolkup watches your position through the camera and runs the timer only while you're holding the plank. Drop your hips, come up on your knees, or step out of frame, and the timer pauses automatically — no need to remember to tap pause yourself, and no padding your time by resting mid-hold.
There are three ways to plank in Wolkup: free mode, where the clock just counts up for as long as you hold it; a time goal, where you're working toward a specific duration; and sets, where you hold for a target time and get a 5-second rest between rounds. Every plank session feeds your Core stat and counts toward your streak the same way push-ups and squats do.
Why it's useful
A phone stopwatch doesn't know if you're actually planking — it just counts seconds, whether you're holding perfect form or lying flat on the floor scrolling your phone. A camera-based timer only advances while you're actually in the position, so the number on the screen means what it says.
It also removes the temptation to eyeball your own hold time. Because the timer pauses the instant you break position, you get an honest read on how long you actually lasted — useful for tracking real progress instead of a number you rounded up in your head.
Limitations — worth knowing before you start
Wolkup checks whether you're holding the plank position, not full-body alignment. For most home setups your legs are out of frame, so it can't verify hip height or spine alignment the way a coach watching from the side could — it's a hold-time timer, not a form corrector. If you're worried about form, it's worth checking yourself in a mirror or filming separately the first few times.
It also needs a clear enough camera angle to tell you're in position at all — very tight framing or bad lighting can cause the timer to pause when you're actually holding fine. Right now this covers a standard forearm plank; other plank variations aren't specifically tracked.