N-day retention measures how many of your users come back to your app on a particular day, the “nth” day. [1]
For most industries, average eight-week retention is below 20 percent. For products in the media or finance industry, an eight-week retention rate over 25 percent is considered elite. For the SaaS and e-commerce industries, over 35 percent retention is considered elite. [2]
[1] The Top 3 Ways to Calculate User Retention Rate with Formulas. Retrieved May 21, 2021, from https://www.braze.com/blog/calculate-retention-rate/
[2] Retrieved May 21, 2021, from https://mixpanel.com/topics/whats-a-good-retention-rate/