7 Best Fitness Apps for 2021

Have you ever used a fitness app? There’s no better time than now to upgrade your game and find the right fitness app that’s best for you. There are many choices, but I’m here to help you narrow down the seven best fitness apps for 2021.

These seven fitness apps provide incredible motivation, more variety in your workouts, digital nudges, and even accountability buddies. The apps I’ve chosen below are based on research from multiple aggregate review sites and are available on your Apple iPhone (iOS), Android smartphone, and even your Apple watch.


The app is an old classic but always reliable. Whether you want to lose weight, tone up, get healthy, change your habits, or start a new diet, you’ll love MyFitnessPal. I appreciate that you can also track calories and find healthy new recipes.

Nike Training Club

A personal favorite: Nike Training Club includes over 180 workouts covering a range of exercises — all for free. From strength training exercises to cardio and endurance to mobility and yoga, it’s all here. 

While some workout-on-demand apps stick to short sessions around 10 minutes in length, Nike has some workout videos that are 30 minutes or longer. The workouts feature videos with trainers who talk to you throughout the session about form and the benefits of exercise.


Keelo is a high-intensity interval training (HIIT) workout-on-demand app. It’s best suited for use in a gym, but one of the great benefits of Keelo is that it provides you alternatives for some exercises if you don’t have the proper equipment available. When you browse the app’s catalog of 16 free workouts, you’ll see a preview of each session before you start.


Let’s face it: running can sometimes be tedious, especially if you’re stuck on a 30-minute treadmill. However, RockMyRun uses music curated by professional DJs to give you the best running experience. Interestingly enough, RockMyRun has been tested by EPARC, a leading exercise lab, comparing the motivation people feel listening to the app rather than the standard workout playlist. The results were precise: RockMyRun increased enjoyment and inspiration by 35%.


The essential Fitbit application functions as an activity and sleep tracker, with running, walking, and hiking monitoring included. You can record your workouts manually, log your meals, monitor hydration, and set your own goals for motivation.

Fitbit Coach

The Fitbit Coach app is a separate download but allows you to watch short exercise videos that you can perform virtually anywhere. The app adds more variety as instructors talk through each exercise and provide visual demonstrations for each routine. Audio cues also help coach you along, and you can even add background music or songs from your playlist. 


Glo offers daily curated classes to meet your needs, whether you need improved sleep, stress reduction, or general strength training. What I like about Glo is that it also offers personalized yoga coaches. Are you looking for a coach that’s challenging? Or maybe playful or inspiring? Glo has many options to fit your mood for the day.

One More Thing

Did these fitness apps help you? Was there something I missed? I’d love to hear your thoughts at hello@heartandsoulblog.com. Also, if you need more accountability tips, check out this helpful article. Be sure to subscribe to the Heart & Soul Newsletter to receive more great tips straight to your inbox each Friday.  

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