I’m Anton Zhvakin the only developer of the Circle of 5ths. I believe privacy is a fundamental human right. That’s why my app Circle of 5ths neither store nor collect any of your personal data.

But I must mention that the Circle of 5ths uses Google Payments so please refer to its Privacy Policy and learn it.

If you have any questions about the document, please contact me via e-mail anton.zhv@gmail.com