Balayu

App-guided child wellchecks, done by parents and reviewed by a real pediatrician.

Parents follow a guided app to measure growth, track milestones, and log health. A licensed pediatrician reviews every check-in and returns a written summary. Built on AAP Bright Futures and WHO standards.

AAP & WHO clinical standards
Licensed pediatricians
Every family gives another child a year of care
Encrypted · Private · Yours
A mother guiding a wellcheck for her young son at home, phone in hand
Our Approach

Why continuous monitoring sees what an annual visit cannot.

The annual wellcheck, the global reference for preventive pediatric care, was never the clinical ideal. It was a logistics compromise, built around what a physician could bill for in 18 minutes. A single yearly data point is noise. Monthly measurements, quarterly check-ins, and continuous monitoring are signal.

Balayu is built around that insight. Every child develops a personal baseline from their own data, not a population average. Continuous monitoring catches what's unusual for them. A pediatrician reviews the record on a defined cadence, and whenever anything surfaces. Over ten years, your child's Balayu record becomes a longitudinal developmental biography. The most complete picture of their health that has ever been assembled.

This is not a digital version of the old standard. It is the standard the old standard will eventually become.

The care you've been giving alone, now with a pediatrician behind you.

You've already been watching. Height marks on the doorframe. Milestones logged in the family chat. The pediatrician call when something felt off. This is what proactive care looks like, and you've been doing the parts of it you could on your own.

The layer above it has never existed for most families. A structured record a pediatrician reviews every month, not only when something is wrong. The standard for children in the countries that built it. Even families who can afford anything have not been able to buy this, because it has not been built.

Monthly
App-guided measurements at home
Quarterly
Developmental screens for every age
Every six months
Guided heart and lung listening
Always on
Continuous monitoring against your child’s baseline
9:41
H
Wellcheck review

April 23, 2026

D
Reviewed by Dr. Meera Tan
MD, FAAP (Pediatrics)
Overall
All Clear

Harutois developing well. Growth, vitals, listening, and development all sit comfortably within his own pattern. Keep doing what you're doing.

Weight
14.2 kg
Height
96.5 cm
SpO2
98%
  • Growth

    Tracking on the 52nd percentile for weight and 47th for height. Velocity is steady. Continuing along his own curve, which is exactly what we want at this age.

  • Listening

    Lung sounds clear bilaterally across all six points. Heart rhythm regular. No murmur on any of the four heart points.

  • Development

    All five ASQ-3 domains in the typical range. Communication and fine motor are particularly strong this quarter.

  • Your question, answered

    You mentioned the runny nose last week. From everything I see and hear today, it appears to have been a mild upper respiratory infection that has resolved. No follow-up needed.

  • Recommendations

    Continue Vitamin D3 daily. Keep iron supplement going for another six weeks, then we'll reassess at the next quarterly check.

  • Next check

    Routine quarterly wellcheck in three months. Monthly check-ins continue in between, as usual.

Download as PDF
H
Saved to Haruto's record · Apr 23, 2026

Every Balayu wellcheck is reviewed and signed by a licensed pediatrician. Built on AAP Bright Futures and WHO growth standards.

Three layers of pediatrician review, on every reading your child submits.

Every reading is measured against two things: your child's own personal baseline, and a growing longitudinal dataset of children's health being built across every Balayu family, the first of its kind at this scale.

CONTINUOUSPersonal baselineQUARTERLYPatterns across monthsANNUALFull-year assessmentYour child'shealth record

Continuous Monitoring

Every reading is compared against your child's baseline the moment you submit it, and the instant anything drifts outside what is normal for them a pediatrician is brought into the record within 24 hours. The question of whether a reading is worth raising has never been yours to carry alone.

Quarterly Review

Every three months, a pediatrician reviews the full accumulated record. Six months of sleep data alongside a slight appetite shift can read as a pattern no single check would flag.

Annual Assessment

Once a year, twelve months of continuous data contributes to one comprehensive physician review. The result is a longitudinal health record that grows richer every year your child is on Balayu.

Captured by you. Reviewed by a pediatrician.

app.balayu.com/queue/arjun/wellcheck
BalayuPhysician portal
MT

Haruto's wellcheck #12

Captured by Kaili Tanaka · 18 hours ago

Section 01

Vitals snapshot

Parent-captured measurements from the latest session. Deltas compared to the prior wellcheck.

SpO₂
94
%
Normal 95–100%-4 vs last
Heart rate
108
bpm
Normal 80–120+6 vs last
Resp. rate
28
rpm
Normal 20–25+4 vs last
Temperature
37.2
°C
Normal 36.5–37.5
Section 02

Growth

Plotted against the WHO boys length-for-age reference. Last six measurements shown.

455565758595105115Birth12 mo24 mo36 mo48 mo60 moLength (cm)
Current measurement
96cm length56th %ile
14.2kg weight58th %ile
Growth velocity
+5.0 cm · +1.2 kg
over the last 8 months — on track for WHO corridor
Section 03

Auscultation

Ten recordings captured with the Balayu stethoscope accessory.

Posterior lung (4 points)
  • Posterior lung point 1 (R upper)
    0:00 / 0:12
    Good
  • Posterior lung point 2 (R lower)
    0:00 / 0:12
    Good
  • Posterior lung point 3 (L upper)
    0:00 / 0:14
    Acceptable
  • Posterior lung point 4 (L lower)
    0:00 / 0:12
    Good
Anterior lung (2 points)
  • Anterior lung point 5 (R mid)
    0:00 / 0:10
    Good
  • Anterior lung point 6 (L mid)
    0:00 / 0:10
    Good
Heart (4 points)
  • Heart point 1 (aortic)
    0:00 / 0:11
    Good
  • Heart point 2 (pulmonic)
    0:00 / 0:11
    Good
  • Heart point 3 (tricuspid)
    0:00 / 0:12
    Acceptable
  • Heart point 4 (mitral / apex)
    0:00 / 0:12
    Good
Section 04

Developmental screening

ASQ-3 scores for the 36-month interval.

Communication
55/60On track
0Cutoff 33.860
Gross Motor
50/60On track
0Cutoff 33.860
Fine Motor
40/60On track
0Cutoff 31.360
Problem Solving
35/60Monitor
0Cutoff 32.860
Personal-Social
55/60On track
0Cutoff 28.860

Everything your child's pediatrician would want to know, before they need to.

Each check builds a longitudinal record of your child's growth, development, nutrition, and wellness. Start from birth and by age ten it is the most complete picture of their health that has ever existed.

Growth curves on AAP and WHO standards, month over month
Developmental milestones at every age, at the cadence the science supports
Guided heart and lung listening with a consumer stethoscope
Nutrition, sleep, and behaviour tracked continuously
Personal baseline detection. Flags what's unusual for your child
Written and signed by a licensed pediatrician after every review
Referrals to vetted pediatricians when in-person care is needed
One health record your child carries from infancy through adolescence

Growth over time

Height, weight, and BMI plotted on AAP and WHO standards. You see exactly where your child is, and where the trajectory is going.

Milestones at the right moments

Validated developmental screening at every age. Language, motor, social, cognitive. Run at the cadence the research supports.

A pediatrician who knows your child

Every wellcheck, flag, and annual assessment reviewed by a licensed pediatrician. Written, structured, signed.

A record that follows them

Every measurement, milestone, and physician note, preserved as one health record your child carries into adulthood.

Reviewed by leading pediatricians.

Every Balayu physician is actively practicing, credentialed against AAP Bright Futures and WHO clinical standards, and personally chosen by our medical advisors.

AAP Bright Futures

Every wellcheck schedule, milestone screen, and growth assessment is built on the American Academy of Pediatrics' Bright Futures framework — the gold standard for preventive pediatric care.

WHO growth standards

Height, weight, BMI, and head circumference plotted against the World Health Organization's growth references. Globally normalized, locally interpreted by a pediatrician.

Reviewed by a real pediatrician

Every reading is reviewed and signed by a licensed pediatrician. The platform never returns clinical guidance without a physician in the loop.

One subscription. Continuous, complete pediatric care.

Annual billing. Cancel any time. Every Balayu family funds a full year of the same care for a child who would not otherwise receive it.

Balayu
For families tracking at home.
$50/year
Monthly app-guided check-ins
Continuous Monitoring against your child's personal baseline
Quarterly Review by a pediatrician
Annual Assessment, the full year read in one sitting
24-hour pediatrician escalation on anything out of range
Written summaries, growth curves, referrals when needed
Most chosen
Balayu +
Everything in Balayu, plus the home assessment kit.
$100first year
$50/year after
Everything in Balayu
Home assessment kit: digital stethoscope, otoscope, pulse oximeter, urine test strips, measuring tape, growth chart
Guided monthly auscultation, heart and lung recordings reviewed by a pediatrician
SpO₂ and heart rate trended against your child's baseline
Urinalysis and ear exam support when flagged
Another Child
Activated by every Balayu family.

Included with every Balayu subscription.

The same full year of care, delivered to another child somewhere it's needed most, for every family who joins.

Monthly app-guided check-ins
Continuous Monitoring against a personal baseline
Quarterly Review by a pediatrician
Annual Assessment, the full year read in one sitting
24-hour pediatrician escalation on anything out of range
Written summaries, growth curves, referrals when needed
Another Child

One subscription. Two children cared for. Every year.

For every family that joins Balayu, another child receives the same full year of pediatric care. The same physicians. The same monthly cadence. Outcomes published every year.

Your child
A full year of continuous pediatric care
Monthly check-ins
Quarterly review
Annual assessment
Same physicians
Another child
The same full year of continuous pediatric care
Monthly check-ins
Quarterly review
Annual assessment
Same physicians
Activated by you
Same product · Same physicians · Same cadence

Common questions.

Balayu is a new category of care. Here's what parents ask most.