Comparison

HearingAmp vs Scoliometer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HearingAmp

This app amplifies and filters environmental sounds in real-time using your phone's microphone and earphones. It offers noise reduction and voice amplification, with customizable frequency profiles for different settings. Tune sound performance to enhance clarity and focus on desired audio.

Highlights
  • Real-time sound amplification
  • Environmental sound filtering
  • Noise reduction
  • Voice amplification
  • Customizable frequency profiles
  • Preset sound profiles
Read full description

HearingAmp allows you to amplify and filter the sounds in your environment. It uses the microphone in your phone to tune the sound in real-time, producing a cleaner, crisper sound through your earphones. You can reduce background noise and amplify different frequency bands, allowing you to tune sound performance to your current surroundings. A number of preset frequency profiles are provided as templates. Users can create and modify profiles for use in various locations such as airplanes, classrooms, or crowded areas. HearingAmp uses a state of the art signal processing engine to tailor and enhance incoming sound. It provides effective noise reduction and voice amplification in any environment. If you use a Bluetooth headset, the headset quality will affect the performance of HearingAmp. In addition, its intrinsic A2DP protocol will increase the latency in real-time communication.

About

Scoliometer

This app provides a convenient and accurate digital tool for measuring spinal curvature at home or in a clinical setting. It offers an expanded measurement range compared to traditional devices and includes a step-by-step guide for easy use.

Highlights
  • Digital scoliometer for measuring spinal curvature
  • Measures trunk rotation angle
  • Expanded measurement range up to 50 degrees
  • Easy-to-follow four-step guide
  • Available in 17 languages
  • Suitable for medical professionals and home users
Features
Currently charting
Read full description

THE #1 SCOLIOSIS SCREENING APP — TRUSTED IN 75+ COUNTRIES Developed by Dr Kevin Lau, D.C. — NGO Representative to the United Nations Turn your iPhone into a clinical-grade scoliosis screening tool. Scoliometer measures the Angle of Trunk Rotation (ATR) in seconds — the fastest, most affordable way to check for spinal curvature at home or in the clinic. Trusted by doctors, physiotherapists, chiropractors, and parents in over 75 countries. WHY SCOLIOMETER? • Measures spinal curvature from 0° to 50° — beyond the range of most physical scoliometers • Accurate trunk rotation readings using your iPhone's built-in sensors • Screens for mild to severe scoliosis in seconds • Trusted by medical professionals as a reliable screening companion • No expensive equipment — clinical-grade results right in your pocket • Personalise the meter with beautifully designed skins HOW IT WORKS Have the patient bend forward into the Adam's Forward Bend position and place your iPhone across the spine. Scoliometer instantly reads the Angle of Trunk Rotation, helping identify curves that may need further evaluation. FOR PROFESSIONALS & FAMILIES Whether you're a clinician running routine screenings or a parent monitoring your child's spine at home, Scoliometer gives you a fast, non-invasive check — anytime, anywhere. No appointment needed. FROM A WORLD AUTHORITY ON SCOLIOSIS Dr Kevin Lau is an award-winning chiropractor, bestselling author, and NGO Representative to the United Nations. His bestselling books and clinical research have helped thousands of patients worldwide take control of their spinal health without surgery. Every feature of Scoliometer reflects his decades of expertise. DISCLAIMER Scoliometer is a screening tool and is not a substitute for professional medical diagnosis. Always consult a qualified healthcare provider for clinical evaluation and treatment decisions.

Screenshots

HearingAmp1 screens
Scoliometer4 screens

Verdict

The call

The clearest difference is rating: Scoliometer at 4.1 against HearingAmp's 3.3. Scoliometer also leads on update cadence (every 3 weeks vs every 6 months) and review sentiment (82% vs 54%). HearingAmp's advantage is price ($3.99 vs $9.99) and iOS requirement (12.0 vs 15.0). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

HearingAmp costs $3.99 and Scoliometer $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Scoliometer holds the better App Store score, 4.1 against 3.3. Both are backed by a comparable volume of ratings — 14 and 14 respectively. Written reviews point the same way: 54% of HearingAmp's written reviews are positive against 82% of Scoliometer's.

UpkeepUpdate frequency

HearingAmp ships an update every 6 months, Scoliometer every 3 weeks. Both last shipped on October 23, 2026.

Scorecard7 real differences · 4 level
HearingAmp versus Scoliometer: the parameters behind the verdict, then further details
ParameterHearingAmpScoliometer
Price$3.99 — better$9.99
Rating3.3 (14 ratings)4.1 (14 ratings) — better
Positive reviews53.8% of reviews82.1% of reviews — better
Number of ratings1414
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank—#95 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size10 MB46 MB
Age rating4+12+
DeveloperDavicomKevin Lau

Customer experience

HearingAmp

All ratings14 ratings
Positive42.9%
Neutral21.4%
Negative35.7%
Written reviews13 reviews
Positive53.8%
Neutral15.4%
Negative30.8%

Scoliometer

All ratings14 ratings
Positive78.6%
Neutral0.0%
Negative21.4%
Written reviews78 reviews
Positive82.1%
Neutral6.4%
Negative11.5%

Bugs and requests

HearingAmp

Not enough reviews yet to summarise bugs or requests.

Scoliometer

Reported bugs

3 issues
  • App does not rotate with phone
  • Image does not rotate to the other side
  • Privacy policy website is blank

Requested features

4 requests
  • Ability to pause the meter
  • Option to rotate the app the other way
  • Adjust meter to help with more severe curvature
  • Ability to save measurements

In-app purchases

None

HearingAmp

No in-app purchases

None

Scoliometer

No in-app purchases

Questions

Is HearingAmp free?
HearingAmp costs $3.99, with no in-app purchases.
Is Scoliometer free?
Scoliometer costs $9.99, with no in-app purchases.
Which has better reviews, HearingAmp or Scoliometer?
Scoliometer is rated higher. HearingAmp averages 3.3 out of 5 from 14 ratings, while Scoliometer averages 4.1 from 14 ratings.
Do HearingAmp or Scoliometer have ads?
Neither HearingAmp nor Scoliometer shows ads.
Which is updated more often, HearingAmp or Scoliometer?
HearingAmp ships an update every 6 months, and Scoliometer every 3 weeks. Most recently, HearingAmp was updated on October 23, 2026 and Scoliometer on October 23, 2026.

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