https://getrevoo.app/blog Guides to reversing audio and video on iPhone, the reverse singing challenge, and voice effects, starting with what your iPhone already does. en Fri, 23 Oct 2026 00:00:00 GMT https://getrevoo.app/blog/reverse-singing-challenge https://getrevoo.app/blog/reverse-singing-challenge Play the Reverse Singing Challenge in Revoo: record a line, learn it backwards, record your copy, then flip it back for the reveal and a score out of 100. Revoo Team Fri, 23 Oct 2026 00:00:00 GMT