Ahoy

Ahoy tracks visits and events into your own database. No third party sees your users'
behaviour, and the data is joinable against everything else in your schema.

What you get

• A visits table with source, referrer, device and location
• An events table you write to from Ruby or JavaScript
• Association helpers, so a visit belongs to a user
• Works with Turbo

Adding it

# Gemfile
gem "ahoy_matey"

# app/controllers/orders_controller.rb
ahoy.track "Completed checkout", order_id: @order.id

The joinable-data argument

"Which acquisition source produces customers who stay past month three" is a SQL join
when the analytics data is in your database, and a data-export project when it is not.