I'm working on a service, WillYou DidYou, two brothers to help people think about and follow up with their goals, like going for walks, or doing laundry. Will asks in the morning if you will (go for a walk, for example) and did asks in the evening if you actually did it.
It's not a technically amazing app - it's purposefully boring on that front. I think i have, 6 DB tables. I've put a lot of focus on making it enjoyable and useful. It's in beta right now, but it's helped me improve myself, and I hope to have it available for sale soon. Getting public info going is my next todo.