Medically reviewed by Alan Lucks | MD, Alan Lucks MDPC Private Practice - New York on March 5th, 2025.
Mobile health apps have become increasingly popular, offering a convenient way to track your fitness, manage health problems, and receive nutrition advice right from your smartphone. However, a recent study published in The BMJ reveals that many of these apps may not be doing enough to protect your personal information.
With millions of apps available, researchers estimate that around 99,000 focus specifically on health and fitness. These apps can be incredibly useful tools for monitoring your well-being, but it's essential to be aware of how they handle your private data.
The study found that 88% of the nearly 16,000 free mobile health apps analyzed had the potential ability to share personal data with third parties, such as Google and Facebook. During brief tests, at least 4% of the apps collected and transmitted personal information, although researchers suspect this percentage could be much higher in real-world use.
One of the most concerning findings was that about a third of the apps didn't provide access to their privacy policies, making it difficult for users to understand how their data is being handled. Furthermore, a quarter of the apps violated their own stated policies.
To safeguard your privacy when using mobile health apps, consider taking the following steps:
Research the app before downloading it, looking for information on how it handles personal data
Check the app's description, "about this app" section, or "app permissions" for details on data privacy
Be cautious about sharing sensitive information, such as your full name, contact details, or precise location
Regularly review the apps you use and remove those that you no longer need or trust
By staying informed and proactive about your privacy, you can enjoy the benefits of mobile health apps while minimizing the risk of your personal data being mishandled.
To learn more about protecting your privacy when using mobile apps, visit:
Understanding Mobile Apps by the Federal Trade Commission
Your Health Information Privacy by HealthIT.gov
Privacy and Security in Mobile Health (mHealth) Apps by the Journal of Medical Internet Research
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