I am in touch with unacedemy since last 8 months and found it not so usful for students.
App is quite good but isn’t userfriendly and is confusing as a result I uninstalled it within 24 hours. But I was using the YouTube channel for current affairs but didn’t find it useful too.
Educators are failing to deliver good quality and just sharing their knowledge copying others.
If you are aiming CSE( Civil Services Exam) then it is little bit useful to you otherwise just a waste of time.
They can inprove their service only if they supervise the educators contents.