iOS: You have countless options for to-do apps on iOS, but if you're looking for something with a little more charm, Quest works similar to apps like Clear but adds a game interface to make it more fun to use.
As with countless other apps, Quest adds a little gamification to your chores to make them more fun to complete. Quest is pretty simple, with just a basic levelling system where you get new gear as you complete more tasks, but it's entertaining nonetheless. As for to-do list features, Quest is on par with Clear, with basic reminders, multiple lists, completed lists, repeating tasks, and a Today widget. It's not as feature-packed as a dedicated to-do list or as a real game, but that's kind of the point. It's simple, fun to use, and offers a tiny sense of accomplishment with each swipe of completion.