AudioFrequencySignalGenerator is a free Android application developed by Oniric Forge that allows users to explore and generate binaural frequencies for sound testing, binaural beats relaxation/therapy, and audio sampling. The app features a 0-20 khz range that can be expanded up to 40 khz, five waveform types (Sine, Square, Triangle, Sawtooth, Noise), and an oscilloscope that displays the current waveform. Users can adjust two frequencies (left and right) with four knobs each that allow tweaking of the related frequency. The app also allows users to link left and right frequency changes and save their favorite frequencies to a list. One can export/import favorite sets of frequencies and waveforms as well. The app also offers binaural sweep effects, monophonic and polyphonic keyboards, and a record feature to save the audio output in the device. However, users need to be careful with the volume control while using the app.