Chapter 1 · Meet Maya

I’m 36, but my body says 40.

Maya is 36. Aura read her Apple Health data and came back with a bio age of 40.1. Otto did not love that.

Otto the turtle, looking worried
Otto

Okay. Deep breath. We can work with this.

Bio age
40.1
Calendar age 36.4 ▲ 3.7 yrs older
Scroll to see what happens
Chapter 2

Otto noticed something.

Aura compares the days Maya does a thing with the days she doesn't. One pattern jumped out: on days she still had caffeine in her system at bedtime, she slept 9% less.

Otto the turtle with a drum
Otto

Ba-dum-tss. Found one.

Noted dip
Noted dip Caffeine at bedtime −9% less sleep that night (6.6 → 6.0 h)
Chapter 3

Building a protocol.

No 47-step biohacking stack. Three small rituals: morning sunlight, no caffeine after 2 PM, and the kitchen closed by 7 PM. Aura checks which ones actually move her numbers.

Otto the turtle, holding a leaf
Otto

Small things, every day. That's the whole trick.

Building a protocol.
  • Sunlight
  • No caffeine after 2 PM
  • Kitchen closed
Chapter 4

What dinner does.

Maya logs food in plain words, free and unlimited. One night she finished dinner at 8:54 PM, well past her 7 PM Kitchen closed. The next morning, Aura showed her what nights like that cost.

And that evening? Last bite at 6 PM.

Otto the turtle, exasperated
Otto

Dinner at 8:54 PM? Kitchen closed at 7 PM. I’m not mad. I’m just a turtle.

Log food in plain words
Last night

You finished eating at 8:54 PM, an hour before bed. On nights like that, your HRV runs 7 ms lower.

Chapter 5

What if…

Your turn to coach. Slide Maya's sleep, steps and resting heart rate, and watch her bio age move.

Otto the turtle, looking worried
Bio age 40.1 Try a slider

A simplified version of the app's What If, using the same scoring bands for these three inputs. In the app, it uses everything Apple Health knows about you.

Chapter 6

Three months later.

Same Maya. Same job. Same coffee, just earlier. Her Aura Wrapped said she started the month at 36.1 and ended it at 34.0. She kept going.

Otto the turtle, celebrating
Otto

WE DID IT. Fine, SHE did it. I helped.

Maya's Aura Wrapped card: she started the month at 36.1 and ended it at 34.0.
Maya's bio age, today
32.9
▼ 3.5 yrs younger than her age Started at 40.1 · Calendar age 36.4
Chapter 7

Your turn.

What's your bio age? Aura reads your Apple Health data and tells you in about a minute. Then Otto helps you move it.

Download on the App Store

Free to start. Logging is free and unlimited.

Features

Everything Aura does

  • Your age, broken down

    Fitness, Heart and Sleep ages next to your bio age, from your VO2 max, HRV, resting heart rate, sleep and activity.

  • Discover what works for you

    Aura compares the days you do a habit with the days you don't, and tells you which ones really improve your sleep, HRV and recovery.

  • Log food in plain words

    Free and unlimited. Then see what dinner does to your nights

  • Readiness, every morning

    Push or recover? Last night's HRV, resting heart rate and sleep against your own baselines.

  • See what moves your age

    What moved it this month, and what would move it next

  • A plan for tonight’s sleep

    When to stop caffeine, dim the lights and be in bed

  • Your month, wrapped

    Free every month, ready to share

  • Cycle-aware

    Log your periods in Apple Health and Aura compares your HRV and resting heart rate with the same phase of your cycles. It stays on your iPhone.

On your wrist and Home Screen

Your score and bio age at a glance, rituals a tap away

Private by design. No ads.

Otto, your coach, runs on your iPhone

Built with Apple Intelligence

Small rituals. Real results.

Aura shows which habits lift your HRV and sleep

People are saying

★★★★★
“By far the easiest Bio related app I’ve come across. Incredibly clean interface…”
Jackieboy_98 · App Store
★★★★★
“From the daily notifications it sends me to the clean crisp interface I have nothing but positive things to say.”
MichaelMusclesInc. · App Store

An illustrative story using a demo profile. Your results will vary.

Aura is for general wellness and is not a medical device. It does not diagnose, treat or prevent any condition.