Chart standing · US
What changed · US
Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.
New turntable mode checks your record player's speed against 33â…“, 45 and 78 RPM targets and measures wow & flutter. Just place your phone on the platter and see the accuracy instantly.
About
Rotation Count turns your iPhone into a precise spin tracker. Using your device's gyroscope, it counts every rotation in real time — perfect for testing motors, tracking exercise reps, measuring drill turns, or any task where revolutions matter. Tap Start, place your phone on the rotating object (or attach it for full revolutions), and watch the counter move. The live chart visualizes angular velocity, while direction detection tells you clockwise from counter-clockwise. Key Features: - Real-time rotation counting with gyroscope - Direction detection (CW/CCW) - Live angular velocity chart - Min, max, and average tracking - Session timer and elapsed display - CSV data export for full sessions - Min/max/average and sample-rate display - Clean, intuitive dark interface Perfect for hobbyists testing fan speeds, mechanics measuring drill RPM, fitness fans counting bike crank revolutions, or engineers diagnosing motor performance. Know exactly how fast — and which way — anything spins.
What's new · 1.0.20
New turntable mode checks your record player's speed against 33â…“, 45 and 78 RPM targets and measures wow & flutter. Just place your phone on the platter and see the accuracy instantly.
Details