Scoliometer App

Q: How accurate is the Scoliometer app?

It measures the Angle of Trunk Rotation, the established forward-bend screening metric. Smartphone scoliometers have been validated for everyday screening in peer-reviewed research.

Q: What reading should I be concerned about?

An ATR of about 7 degrees or more is the widely used threshold to seek a professional assessment.

Q: Does the app diagnose scoliosis?

No. It screens for trunk rotation associated with scoliosis. Diagnosis requires clinical examination and usually imaging.

Scoliometer — Screen for Scoliosis at Home

By Dr Kevin Lau · Medical

The Scoliometer app turns your phone into a digital scoliometer, measuring the Angle of Trunk Rotation (ATR) up to 50° — the same forward-bend screening method clinicians use, now validated in peer-reviewed research.

★★★★★ 4.3 on the App Store · 18 languages

Download on theApp Store Get it onGoogle Play

#1 scoliosis app in 75+ countries4.3★ App StorePeer-reviewed (Eur Spine J 2022)Measures up to 50°18 languages

Why People Use the Scoliometer App

The clinician's method, on your phone — measures the Angle of Trunk Rotation via the Adam's forward-bend test, the standard scoliosis screening check.
Screens larger curves — the digital range extends to 50°, beyond the ~30° ceiling of many handheld scoliometers.
Guided four-step measurement — clear on-screen instructions make an accurate reading simple for anyone.
Research-backed — smartphone scoliometers have been validated for everyday screening in the European Spine Journal (2022).
For home or clinic — used by parents, patients, doctors and therapists in over 75 countries.
Available in 18 languages — accessible to families worldwide.

How to Measure Scoliosis in Four Steps

1. Forward bend — have the person bend forward at the waist with arms hanging (the Adam's forward-bend test).
2. Place the phone — rest it flat across the back, level with the spine, moving down the curve.
3. Read the angle — the app displays the Angle of Trunk Rotation in real time.
4. Act on the reading — an ATR of about 7° or more is the common threshold to seek a professional assessment.

Scoliometer App vs. a Handheld Scoliometer

	Scoliometer app	Handheld scoliometer
Measurement range	Up to 50°	Around 30°
Always with you	Yes	No
Guided instructions	Yes	No
Languages	18	N/A
Typical cost	One-time app	$150–$300

See How It Works

Screen for Scoliosis in Minutes

Download the Scoliometer app and take an accurate reading today.

Visit the official Scoliometer site →

The Scoliometer app supports screening only. It is not medical or treatment advice, a diagnosis, or a substitute for professional care. A reading of about 7° or more should be followed by assessment from a qualified clinician. To review your spine with Dr Kevin Lau, book a consultation.

Reference: van West HM, Herfkens J, Rutges JPHJ, et al. The smartphone as a tool to screen for scoliosis, applicable by everyone. European Spine Journal 2022;31:990–995.

Frequently Asked Questions

How accurate is the Scoliometer app?

It measures the Angle of Trunk Rotation (ATR), the established forward-bend screening metric. Smartphone scoliometers have been validated for everyday screening in peer-reviewed research (European Spine Journal, 2022).

What reading should I be concerned about?

An ATR of about 7° or more is the widely used threshold to seek a professional assessment. A higher reading does not confirm scoliosis on its own — it signals that a clinical check is worthwhile.

Does it work on iPhone and Android?

Yes. The Scoliometer app is available on both the Apple App Store and Google Play.

Does the app diagnose scoliosis?

No. It screens for the trunk rotation associated with scoliosis. A diagnosis requires clinical examination and usually imaging by a qualified professional.

Can health professionals use it?

Yes. Doctors, chiropractors and physiotherapists use the app for fast, convenient scoliosis screening, as do parents checking children at home.

About the author

Dr. Kevin Lau, D.C., M.H.N.

Dr. Kevin Lau is a Doctor of Chiropractic and non-surgical scoliosis specialist with more than 25 years of clinical experience. He is the founder of ScolioLife® and inventor of the ScolioAlign® brace, an international author whose scoliosis books are published in nine languages, a former SOSORT member and ACA member, and a United Nations ECOSOC representative.

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