How to use bits?

Question

I am unable to unlock pro code coach with them.

Answer 1

You can't use bits for pro code coaches outside of the Course
like easy, medium , hard level code coaches

It's only available for the pro codes >>"within Courses".

Answer 2

Click on the pro challenge and there you will get an option to unlock it using code bit but if that doesn't help then you can send an email to sololearn at [e-mail].

Answer 3

I wish we could purchase some crypto in exchanges of the bits.: -)