True Note is a free iPhone app developed by James Rhoades. It falls under the category of Utilities & Tools and provides a convenient way to test the speed of a record player.

With True Note, users can easily determine if their record player is playing at the correct speed. The app utilizes a strobe disc, which can be printed and cut out from the app. The disc is then placed on the record player, which is set to theRPM speed. By tapping "START" in the True Note app, users can shine the flashing LED light from their iOS device onto the strobe disc.

If the record player is playing at the correct speed, users should be able to see the individual lines on the strobe disc and notice that they remain in the same position without drifting in any direction. True Note also offers the useful feature of calibrating adjustable speed record players.

Additionally, the compact size of the True Note strobe disc makes it convenient to carry in a wallet or iPhone case. This allows users to easily test turntables when shopping for used record players at thrift stores or garage sales, ensuring that the potential purchase works properly.

True Note is a handy tool for any vinyl enthusiast or anyone interested in buying a record player. Its user-friendly interface and practical features make it a valuable addition to any record player setup.