Cuckuu, by Ake Ideas, is an alarm clock for your daily schedule. The app lets you set reminders for tasks and share them with friends.
When you complete a task you can get points and win prizes. You can also chat with friends and add pictures and videos to your alarms for extra motivation. By making your schedule a social event you make it a whole lot harder to ignore, so you can actually get things done. You can also set private alarms for activities in case you don't feel like sharing.
Cuckuuis free on the App Store, so set a reminder to download it.