As someone deeply in love with Omnifocus, this feels like a step backward for me. Omnifocus has several features that Emery does not, and the only thing Emery has that Omnifocus does not is a dedicated notes space that isn't tied to tasks, but I'd rather use Omnifocus+a more feature rich notes app than use Emery.

If you'd like a bit of product advice...each of the verticals you're building on (calendar, tasks, and notes) are packed with competitors and feature rich. I don't think you can offer a better product by creating an all-in-one solution. At best, you can help customers with no solution today, but you're banking on their lack of awareness of their options in the space at that point, and that's a bad strategy.

If you want to be successful in the productivity space, I think it's far, FAR more prudent to focus on one of these areas (calendar, email, or notes) and get really REALLY good at it by serving a particular workflow or customer segment that doesn't have a tailored solution.

Though maybe you just built something you want to use yourself and are operating this as a side project. If so...god speed.