Phrase Pump - How does a word move from Learning to Learnt?

Hi,

I am using Phrase Pump heavily and noticed words are not moving from Learning to Learnt. Is this not an automated change or do I have to manually self assess whether I know the word and mark it as such? Or will it update after x reviews/quizzes to be considered Learnt?

Thanks!

I think you have to manually checkmark it as learnt