Frequency Counter Hz Tuner for Android

Frequency Counter Hz Tuner is a versatile audio analysis tool designed for Android users. This free application offers four distinct modes: Music, Motor, Hum, and Auto, catering to various audio measurement needs. The Music mode functions as an instrument tuner, displaying the note name and pitch deviation, while the Motor mode helps users read RPM standards. The Hum mode locks onto mains frequencies, and the Auto mode provides real-time Hz readings alongside corresponding musical notes or harmonics.

Recent updates have introduced several features that enhance user experience. Users can now access a Measurement History with auto-saved readings and a 7-day trend chart. Additional functionalities include the ability to add notes to saved readings, compare two measurements side by side, and fine-tune microphone calibration. The app also allows sharing of frequency readings as images and exporting all measurements as CSV files for easy analysis.