Wi-Mark is a free Android app developed by Roei Tabak in the Social & Communication category. It provides a convenient way to compare Wi-Fi reception between devices. The app assigns a score to each device in the form of nadBm, which stands for Normalized Aggregate dBm. This score allows for easy comparison with other devices. In order to accurately compare Wi-Fi reception strength, all devices being compared must be placed in the exact same spot during the benchmark. The device with the highest nadBm score in the same environment is deemed to have the strongest Wi-Fi reception. nadBm scores can range from 0 to hundreds or even thousands, depending on the environment. It's important to note that Wi-Fi reception can be affected by various factors such as temperature, humidity, and surrounding objects. Therefore, it is recommended to perform the Wi-Mark test on all devices in the same environment to ensure accurate metrics. Additionally, the app also recognizes some of the devices' Wi-Fi chipsets and the detection is constantly being improved.