1. Plant Nanny - Water Reminder

This app allows you to input your weight and activity level to estimate how much water you should be drinking on a daily basis. Did you know you are supposed to drink approximately your weight in ml of water every day? It gives the options to save multiple drinks in either ml or oz. The apps also has the option to set up reminder notifications for keeping hydrated.

Here's the fun part: When you drink something, that goes toward watering plants in your garden, evolving them, and growing new plants. You can choose between a variety of plants, pots, backgrounds and more.

2. Walkr: Fitness Space Adventure

This app is a pedometer — aka a step tracker. It tracks how many steps you take throughout the day and records how many calories you burn by doing that. The app runs in the background of your phone even when closed to keep track for you.

Here's the fun part: All of your steps get turned into energy that you use to unlock weird planets in the universe. The more you walk, the more planets, resources and species you unlock as well. This is not only a tracker, but a fun idle game to play in the background — jumping between your planets and delivering packages between them for more points to spend later.

3. Zombies, Run!

If you want to be motivated to run, most people put something on in the background to listen to. Some people listen to music, some to audiobooks, and now you can listen to this app. It gives you the option to either run at a steady pace, or run intervals of slow to fast and back to workout. There is also a version of the app specifically to help you train for 5k marathons.

Here's the fun part: This app puts you into the world of a zombie apocalypse. Listen to the sounds of zombies behind you as you run from them to survive. Run faster the closer the zombie sounds get to you to escape them. Train yourself to be a movie or book hero and gain the stamina to survive all your quests.

Note: I've noticed it can trigger anxiety for some people, so take that into account when using it.

4. Level Up Life

New Years' resolutions can be hard to think of, let alone to keep track of and complete. This app gives you goals to get you out of the house, doing productive things, and keeping you healthy. You can post and track all of your accomplishments through the app, and unlock even more goals to complete once you finish the lower level tasks.

Here's the fun part: Like in tabletop board games such as Dungeons & Dragons, you gain experience points in certain stats depending on what kind of task you complete. You can slowly level up your character and keep track of your skill chart through the app. As you level up, you unlock more and more interesting activities to keep you motivated and excited to switch up your daily routine. Let your campaign of this year begin.