I didn't say stop improving on solutions that miss the mark. I just think there is a lot of unexplored territory for software developers. People like to solve problems they have and understand. To do list apps are the classic example for developers. I'm just saying there's a lot of opportunity out there if you step outside your comfort zone.
All I know about this app is that it's a web based todo app. I was clear on this so to pick me up on it is a bit out of line. A better response would be to point out how it improves on what's already available.