Retention is the single most important thing for growth.
- Ideally if you have a asympote to x-axis for retention curve, you have a product market fit for that set of users.
- Look for Monthly Active users - I think in Atlas' case we should use WAU.
- What is a good retention? - Figure it out for yourself. DO THE MATH. Different verticals need different retention rates - have to tools to think about it.
- Should look at the number that actually matters - In Atlas' case that number should be no. of cards saved per user/week. The users should also be segragated into further groups according to their personas and ideally have atleast 50 people in each persona for analysing the data.
- What's the magic moment for Atlas?
- For people who are already using the product all the time, notifications probably won't do much harm, let them take control if they don't like them, but don't miss not sending across things to marginal users.
- Growth in pinterest's case was driven by marketing.
