The Bracket type of User retention report shows the percent (or the number of users) who came back in a specific period.
The report supports the following ranges (subperiods): One week, Two weeks, 1 month. If the player returns to the game in any day inner the subperiod, he will be counted in the appropriated column. If the player comes back on different days inner the same subperiod, he will be counted only once.
For example, the player joined the game on 01'Sep. Then he played the game on 03'Sep and on 09'Sep.
Bracket retention (with week range) for this case shows the data for Day 1- Day 7 and Day 8 - Day 14 retention.
By default, the report is shown with One week range. Another range can be selected from Range menu.