توضیحات:

The Goldfreq application is a kind of frequency generator. You can produce sounds at different hertz. Also, the app contains some meditation music. You can listen to different meditation music and sounds at different frequencies without connecting to the internet.
Goldfreq is also a meditation app. Frequencies believed to have some healing properties are loaded by default. It also offers a complete sound enhancement and meditation experience with visual effects.

Default hertz sounds in the program:
174 HZ
285 HZ
396 HZ
417 HZ
528 HZ
639 HZ
741 HZ
852 HZ
963 Hz

All these frequencies are known to be associated with one chakra. You can choose any frequency other than these.
You don't just have to listen to the meditation music on the program. You can listen to other different frequencies in any audio format on your phone.