The tuner includes :

1. Two tone generators, which can play any note together. This is very usefull for tuning an instrument such as a real tanpura, a tabla, a sitar, ... You tune precisely the note played by semi tones, cents and 1/10 of cents. The actual frequency of the note is displayed. The tone generator can also be used as a shruti (then use a very light volume for it).

Demo of the tone generator

1. Soon, it will also include a digital tuner. Not yet available.