Plank Coach: Form Timer

Cooltime Studio

Contains ads

About this app

Plank harder, not just longer.

Plank Coach uses your phone's camera to check your plank form in real time. The idea is simple: the timer only runs while your body holds a straight line. The moment your form breaks down, the clock stops. So instead of "I held it for X minutes," you record "I held it properly for X minutes."

Who it's for
● Anyone who trains alone and is never quite sure their form is right
● Anyone who wants an effective plank, not just one that fills the clock
● Anyone who wants to turn core training into a lasting habit

Key features
● Real time form check: detects sagging hips, piked hips, a dropped head, elbow position, and left-right imbalance, and flags them instantly.
● A timer that runs only with correct form: valid time and break count are tracked separately.
● Instant coaching cues: a one line tip on exactly what to fix right now.
● Voice guidance and vibration feedback: know the moment your form breaks, even without looking at the screen.
● Choose your plank type: front plank, side plank (left/right).
● Adjustable sensitivity: set strict, normal, or relaxed to match your level.
● Set a target time: pick today's goal and watch yourself reach it.

When a session ends
● See your posture score, valid time, total time, break count, and valid ratio at a glance.
● Review where you wavered with a hip angle graph over time and a posture status timeline.

Records and habits
● Total sessions, cumulative valid time, and average score are tallied automatically.
● A calendar view of your last 12 weeks lets you see your consistency at a glance.
● A gentle daily reminder arrives at the time you choose.

Your privacy, protected
● Camera footage is analyzed only on your device.
● No video or photos are saved, and nothing is ever sent anywhere.
● Posture analysis needs no internet connection.

Start with Plank Coach today and build up the time you held properly, not just the time you held.

(This is a free app that contains ads.)