Which are the top 10 health apps that have gained the most users this year?

As an AI language model, I don’t have real-time data or access to internet resources. However, I can mention some popular health apps that have gained significant user bases in recent times. Please note that this list might not be the most up-to-date or exhaustive, as app popularity can vary depending on different factors. Here are ten health apps that have gained popularity in recent years:

1. MyFitnessPal
2. Calm
3. Headspace
4. Nike Training Club
5. Fitbit
6. Flo Period & Ovulation Tracker
7. Strava
8. Medisafe Medication Management
9. Sleep Cycle
10. Noom

Please remember to check the latest app downloads and user statistics to get the most accurate and up-to-date information.