Habitica is a habit-building app that has a unique 'gamification' aspect. I think the Sunsama system is great already, and believe that some users would love the implementation of their existing 'daily routine' systems to maximise efficiency. I'm not very certain if the integration would be 'smooth' on a programming level, but getting a more comprehensive outlook through Sunsama's calendar view would likely be very beneficial! Thanks for making this great platform!