WhatSpeed – GPS Tacho

WhatSpeed turns your iPhone into a GPS speedometer with four modes — all in one clean, distraction-free app. DIGITAL SPEED Large, easy-to-read speed display with your current and top speed at a glance. SPEEDOMETER Classic analogue dial with a live speed readout — satisfying to watch at any speed. ACCELERATION TIMER Measure 0–60 mph, 0–100 km/h, quarter-mile runs, or any custom speed target. Set how many runs you want, and the timer starts automatically when you move — no button tap needed. Your best time is highlighted after every session. LEAN ANGLE Built for motorcyclists: see your current lean angle live on a clear dial, with separate maximums for left and right corners. One tap on "Zero" calibrates the display to your mount, however the phone is angled. FEATURES · GPS-powered, no internet connection needed · Lean angle with maximum values left and right · km/h and mph support · Dark and light mode · Sound & vibration feedback when your target is reached · Clean, minimal design — no clutter, no ads WhatSpeed uses your iPhone's GPS for speed measurement. Accuracy depends on GPS signal quality. Not suitable for legal speed control purposes. Note: the lean angle display uses your iPhone's motion sensors and is intended for entertainment. It is not a measuring instrument. Never operate the app while riding.