Is a health app offering personalised cancer screening or genetic risk analysis for a fee legitimate?
Only if it is regulated as a medical device and provided by a licensed clinical service. Many commercial health apps overstate their screening capabilities.
Last reviewed: 1 June 2026
Explanation
The consumer health technology market includes many apps that claim to detect or predict serious illness through questionnaires, photos, or consumer wearable data. While some regulated medical device applications exist, a large number of products make misleading health claims not backed by clinical evidence, charge subscription fees for results of no diagnostic value, or collect sensitive health data that may be sold without meaningful consent. No app or consumer wearable can replace a medical consultation or validated clinical screening programme. Before paying for any health screening service, check whether it is registered as a medical device with your national health regulator, whether clinical evidence is published in peer-reviewed journals, and whether a qualified clinician is involved in interpreting results.
Common red flags
- App claims to diagnose or detect cancer, diabetes, or other serious illness without a medical consultation
- No reference to regulatory approval as a medical device
- No qualified clinician named or involved
- Results available instantly based on a photo or simple questionnaire
- Subscription fee required to view your health 'results'
What to do now
- Verify the app's medical device registration with your national health regulator
- Consult your GP or doctor for any genuine health concern
- Read the app's data privacy policy before submitting health information
- Report misleading health claims to your consumer protection authority
Frequently asked questions
Are all health apps untrustworthy?
No — many fitness and wellness apps are useful and safe. The concern is specifically with apps making clinical diagnostic or screening claims without proper medical device authorisation.