Turntable Speed by SnakeRule is a free Android app that allows you to achieve precise measurements of vinyl turntable speed and wow by simply placing your phone on the turntable platter. With this app, you can easily measure the speed of your turntable, including average and minimum/maximum variations.

This app supports a wide range of speeds, including 16 ⅔, 33 ⅓, 45, and 78 RPM. It also features a sleek and intuitive modern user interface, making it easy to use for both novice and experienced users. Additionally, you can calibrate your phone to ensure the most accurate RPM readings.

One of the best things about Turntable Speed is that it allows you to save measurements for future comparisons. Furthermore, it comes with wow and flutter detection for an in-depth analysis of turntable performance.

Overall, Turntable Speed is a great app for anyone who wants to assess their vinyl turntable with just their phone placed on the turntable platter. It is free, has no in-app purchases, and is a must-have for vinyl enthusiasts.