Comment by d_burfoot

The problem with productivity apps is that one size does not fit all. Everyone has radically different goals, constraints, interests, and workflows. Many people would benefit from having a "living" app that is personalized to their tastes, and also adapts over time as the characteristics of your life change (e.g. having kids is probably going to change your approach to productivity!)

I recommend finding a framework within which to build your own apps, and then building your own suite of apps that have exactly the features you want (shameless plug, I built a platform that can serve as such a framework : WebWidgets.io. It is basically a way to hook up SQLite databases to JS objects in the browser, which allows wide liberty to build your own simple custom apps).