Alarm Clock Puzzle is a free puzzle and math game alarm clock app that ensures you wake up on time. Developed by Wro Claw Studio S.C., this app is perfect for heavy sleepers who struggle to get out of bed in the morning. The app comes with a variety of challenges including math problems, picture puzzles, maze games, and more.

One of the best features of this app is that you can customize the challenges, snooze time, and everything easily. The app also allows you to add puzzles to solve before turning off the alarm, and if the basic ones don't cut it, you can buy additional harder minigames. Moreover, the app enables you to choose the alarm music to which you can wake up.

With the Wake-up Poke feature, 5 minutes after turning off the alarm, you will need to prove that you're up, or else it will go off again. This intelligent alarm clock app will try its best to make sure that you have woken up. The app also has a snooze limit feature, which can be a great app for you if you are looking for a no snooze alarm for heavy sleepers.

Overall, if you are looking for a puzzle alarm clock app for heavy sleepers that is smart and effective, then Alarm Clock Puzzle is for you!