While the cohort tables seems easy to understand, it’s not actually easy to write SQL queries that generates those graphs because of the way SQL works. That’s p

While the cohort tables seems easy to understand, it’s not actually easy to write SQL queries that generates those graphs because of the way SQL works. That’s probably the main reason why most of the companies continue to use the tools such as Mixpanel and Amplitude. If you don’t have the raw event data, it’s probably easier to use one of those tools. That being said, we’re actually focusing exactly that use-case at https://rakam.io https://rakam.io. If you have the customer event data in your database, you model your data and run ad-hoc funnel and retention queries. The product is free for individual users, feel free to try it out.