15pts for analytics, 5pts for code and 10pts for appropriate thought and event tracking
You also will move to a more operational phase of the project after launch. This phase suggests that we put analytics and error monitoring in place. Implement a service like Mixpanel, Keen or some other like service to track individual events. You may not use GoogleAnalytics for this task though you are welcome to add in such a service for more data to complement what you are tracking in a more manual fashion. The key to this portion of the homework is not just adding the JS calls to support your chosen service, but to pick things that might be useful to track for modifying your app later on.
Cannot use Google Analytics.