GUIDES
Short, practical explanations for the questions drivers ask about speed measurement - written against how the app actually behaves, not marketing copy.
2026-09-18
Tall buildings do not block the signal so much as confuse it. Here is what multipath and urban canyon actually do to your reading, and what the app does when the signal disappears entirely.
Read the guide →2026-06-30
Instrument designers have argued about this for a century. The answer depends on whether you need the exact number or the trend, and the app gives you both plus a third option.
Read the guide →2026-05-18
Continuous positioning and an awake screen are the two costs. Here is roughly what each one takes, which fixes are real, and which popular advice does nothing.
Read the guide →2026-04-02
Distance, total time, duration, stop time, average and maximum speed. They are not interchangeable, and knowing which is which turns a list of trips into something you can learn from.
Read the guide →2026-03-12
HUD mirrors the readout so the windscreen reflects it back at you. Here is the optics behind it, when it genuinely helps, how to set it up, and the legal caution that comes with it.
Read the guide →2025-11-08
A phone can time an acceleration run well, but only if you control the variables. Here is what ruins a result, what a repeatable procedure looks like, and how to read the number you get.
Read the guide →2026-02-20
Switching units changes the number, not the accuracy. Here is the conversion that matters, where each unit is actually used, and how the gauge scale should follow your choice.
Read the guide →2026-01-30
An alert only helps if the threshold is chosen well. Here is how to pick a number that accounts for your dashboard's over-reading, and why a self-set limit beats glancing at the display.
Read the guide →2026-02-11
Your dashboard reads high on purpose, and the law allows it. Here is the regulation behind the gap, how large it should be, and when a difference is telling you something real.
Read the guide →2026-03-04
Your iPhone calculates speed from satellite signals, not from your wheels. Here is what that means for accuracy, where it fails, and how to get a reading you can trust.
Read the guide →