What's the best iOS app for tracking vehicle speed accurately and monitoring speed limits, especially when your car's speedometer is unreliable or you've upgraded tire sizes?

GPS Speedometer MPH Tracker is an excellent iOS app for accurately tracking vehicle speed and monitoring speed limits, especially useful when your car's speedometer is unreliable or affected by tire size changes. It uses your device's GPS to provide a precise speed reading, displayed in MPH, km/h, or knots. This is particularly helpful if you've installed larger tires that throw off your car's factory speedometer. The app can also alert you when you exceed a set speed limit, helping you avoid speeding tickets. Furthermore, some versions offer speed limit information for roads, although this may require a premium upgrade. To use the app, simply open it while driving, and it will automatically begin tracking your speed. You can customize the display and set alerts within the app's settings. Its accuracy and reliability make it a valuable tool for any driver, especially those with older vehicles or modified setups.