Speedometer

I have been using this app for a couple of months and I find it to be very accurate compared to my vehicle's speedometer. Because my vehicle has been factory fitted with bigger rims and low profile tyres, the speedo is approximately 5 - 10k overspeed compared this app. Which meant I was always travelling slower than allowed. Now with help from the app. I travel at the nominated speed and don't get honked at by other motorists.