The “to-do list” app market is pretty flooded by now with tons of great options but Clear’s interface is hands down the most elegant. My only concern is the interface gestures it uses don’t necessarily feel natural and intuitive. Instead they feel like they are a learned behavior. The simplicity is fantastic, but there is something to be said for interfaces that use metaphors and interactions modeled on real life behaviors.
Take a look at their promo to see what you think.