Free tool · your real numbers
The Retention Diagnoser
Open YouTube Studio, pick one upload, and copy four numbers into this box. It tells you whether you have a packaging problem, a content problem, or a channel problem, in plain English, with the fix.
The whole upload, as published.
Studio → Analytics → Engagement.
Studio → Analytics → Reach. Blank if unknown.
How many times YouTube showed the thumbnail.
Hover the audience retention graph and look.
Benchmarks here are working rules from church channels we have run and coached, not YouTube gospel. Judge your videos against your own videos of the same length first.