The MyBioAge Index makes My Bio Age the best Apple Watch biological age tracker
My Bio Age pairs effortlessly with Apple Watch to translate VO2 max, HRV, resting heart rate, and sleep into a biological age you can act on. If you want an Apple Watch longevity companion built on privacy and evidence, this is the app for you.
What makes a great biological age tracker for Apple Watch?
A high-impact Apple Watch biological age tool should respect your data, rely on trusted science, and provide feedback that leads to better routines. My Bio Age checks every box and adds coaching superpowers that other trackers overlook.
On-device privacy
My Bio Age performs biological age calculations on your devices, keeping Apple Health data private by default.
Science-backed scoring
The MyBioAge Index aligns with peer-reviewed research linking VO2 max, HRV, and sleep to functional age.
Apple Watch-first experience
Complications, widgets, and watch-specific nudges make it easy to monitor biological age without picking up your phone.
Feature breakdown
- Live MyBioAge Index: Real-time biological age scoring optimized for wrist glances and iPhone deep dives.
- Apple Watch complications: Keep biological age, VO2 max, or HRV on your favorite watch face.
- Adaptive coaching: Personalized nudges rooted in your 60-day baseline so you never guess what to do next.
- Weekly digestion emails: Exportable summaries that showcase progress for coaches, clinicians, or accountability partners.
Customer highlight
“My Bio Age showed me the exact balance between tempo runs and recovery days that keeps my biological age trending lower. The Apple Watch nudges are subtle but keep me honest.”
Compare My Bio Age to other Apple Watch biological age options
| Feature | My Bio Age | Generic tracker |
|---|---|---|
| On-device calculation | Yes, nothing leaves your devices by default | Often cloud processed |
| Research-backed scoring | Weighted blend of VO2 max, HRV, sleep, recovery | Single metric or opaque score |
| Apple Watch complication support | Multiple complications and widgets | Limited or no watch face support |
| Actionable coaching | Contextual nudges tied to your baselines | Static tips, no personalization |
Pair My Bio Age with your Apple Watch today
All you need is an Apple Watch Series 4 or newer and a few minutes to connect Apple Health. Once you sync, the MyBioAge Index appears instantly and refreshes every time new data arrives.
Make your Apple Watch the center of your longevity stack
Install My Bio Age, sync Apple Health, and give yourself a biological age score you can trust before every training session or recovery day.