Biological Age Apps and Tests: How to Compare Your Options
Compare wearable-based wellness estimates, blood biomarker services and epigenetic tests by inputs, purpose, evidence, cost and privacy.
By My Bio Age
“Biological age” appears on wearable dashboards, blood testing services and epigenetic reports. These products can use very different inputs. Before selecting one, decide whether you want frequent wellness feedback, information about specific blood markers or a particular laboratory-based estimate.
This guide is published by My Bio Age. It is not an independent ranking or a head-to-head accuracy study, and it should not be read as medical advice to purchase a test.
Wearable-based wellness estimates
My Bio Age uses available Apple Health measurements to produce a weekly MyBioAge Index™. It is useful for reviewing repeated fitness, sleep and recovery records without a sample collection. Its consumer score is not equivalent to a clinical assessment or a DNA methylation test.
Other wearables offer their own age-related features. For example, WHOOP Healthspan includes WHOOP Age and Pace of Aging. Check how each provider defines its model and what hardware or membership it requires.
Blood biomarker services
InsideTracker describes InnerAge as an estimate derived from selected blood biomarkers. That is a different input set from the wearable measurements used by My Bio Age.
If you are considering blood testing, distinguish a summary age score from the individual measurements. Ask what is included, whether results require clinical follow-up and how an abnormal result will be handled.
Epigenetic tests
Providers such as TruDiagnostic describe age and pace estimates based on DNA methylation. These require a biological sample and use models different from a watch-derived Index.
Elysium explains the method and repeatability considerations for its Index test in its own documentation. Review the evidence for the exact product rather than assuming all epigenetic tests share the same validation.
Five questions to ask before choosing
- What does this result actually measure or estimate?
- Which inputs does it need, and can I provide them consistently?
- What evidence supports this specific model and its intended use?
- What is the total cost, including repeat testing, hardware or membership?
- Where are my records processed and how can I access or delete them?
Keep comparisons meaningful
A lower age number from a different provider is not necessarily a better result. Models use different references, signals and time windows. Even within one service, a settings or data-source change can make a trend harder to interpret.
For ongoing Apple Health review, My Bio Age offers weekly estimates and daily context on your iPhone. For a clinical question, choose an appropriate assessment with a qualified professional rather than selecting whichever app produces the youngest number.
For a private way to explore a weekly wellness age estimate from Apple Health, download My Bio Age free on the App Store. The iPhone app is completely free, with no in-app purchases, subscription or account required. Your health data is processed privately on your iPhone.