Retention analysis allows you to see the retention rate of your users.
How to check
Click on Analytics > Retention Analysis.
You can see the graph of the retention analysis here.
How to read the graph
The vertical axis shows how many target users were there for each set period of time. The horizontal axis shows the percentage of target users who revisited the site after n days.
On Sunday, October 27th, the day circled in red below, there were 206 new users who performed the first launch at least once, and 47.57% of them revisited after 1 day, and 50.97% of them revisited after 7 days.
It does not represent the percentage of users who revisited the site for n consecutive days.
You can also toggle the percentage of users who have achieved and those who have left the site.