6. Key resources
These are all resources necessary to maintain relationships and perform key activities. This may include physical resources (shop fronts, displays), digital infrastructure and tools, personnel, financial, and intellectual resources (patents, trademarks, data). This will show you which assets are indispensable in your business.
For the Habit Tracker app, the coders, documenters (and translators) and marketing writers/designers would clearly be indispensable resources. But also the database hosting that lets users and coaches actually use the app, which would be hosted on Amazon Web Services or a similar cloud platform.