Comparison

Sonu vs ButeykoClinic®

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

Head to head
About

Sonu

This app offers personalized, drug-free acoustic resonance therapy for nasal congestion relief. It uses AI and facial scanning to tailor treatments, delivered via a separate wearable band. Track your progress and enjoy convenient, at-home therapy sessions.

Highlights
  • Personalized acoustic resonance therapy
  • Drug-free treatment
  • AI-enhanced facial scanning
  • Bluetooth connectivity
  • Treatment session tracking
  • Micro vibration options
Read full description

SONU provides personalized, drug free, acoustic resonance therapy to treat nasal congestion symptoms caused by allergic and non-allergic rhinitis. SONU is backed by FDA authorization, extensive clinical trials, and enhanced by AI. SONU works with iPhone X or later models and uses Bluetooth to connect with your iPhone. To get started simply download the app and follow the on-screen instructions to get to your 15 minute treatment session. You can choose to relax with the gentle micro vibrations or go about your daily activities. The SONU app takes a scan of your face using the front facing camera and personalizes the acoustic therapy based on your facial anatomy and other proprietary factors. The acoustic resonance is delivered via medical grade bone conduction transducers in the SONU band (a lightweight, wearable headband purchased separately).  SONU is proven to be safe and effective and also has a history of your treatment sessions in the app so you can track your usage over time.  Medical Disclaimer: This app does not replace or provide medical advice and diagnosis. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. Regulatory Jurisdiction: The SONU band is authorized for use by regulatory authorities only in the USA (FDA) and Singapore (HSA). Any feedback? Contact us at https://soundhealth.life/contact/ Additional information including the privacy policy, biometric notice and terms of use can be found at https://soundhealth.life

About

ButeykoClinic®

Learn a physician-developed breathing program to enhance immunity, reduce stress, and improve sleep and overall health for adults and children. Access guided exercises, track progress, and test your breathing capacity.

Highlights
  • Video program for children and teens
  • Guided breathing and relaxation for adults
  • Control Pause breathing test
  • Progress tracking
  • Links to resources
  • Find an instructor
Features
Read full description

The Buteyko Method is a physician-developed breathing program that boosts immunity, reduces stress, deepens sleep, and improves physical and mental health, in adults and children. Experience the powerful benefits of Buteyko breathing. Free from the UK’s leading Buteyko breathing clinic. Inside the app: • A complete video program of breathing exercises for children and teens • Guided breathing and relaxation exercises for adults with Buteyko Clinic founder and breathing expert, Patrick McKeown • Test your breathing using the Control Pause • Track your progress • Links to resources including MYOTAPE, Patrick McKeown’s mouth tape for sleep • Find a Buteyko Method instructor The Buteyko Method gives long-term relief from asthma, rhinitis, sleep apnea, snoring, PMS, headaches, back and neck pain, anxiety, chronic hyperventilation and more. It supports immunity and may help relieve the discomfort of breathing in a face mask. This globally established breathwork method is safe, simple, and scientific. Download the free app now and begin to practice healthy breathing. For children and adults. For better lifelong health and wellbeing.

Screenshots

Sonu4 screens
ButeykoClinic®4 screens

Verdict

The call

The clearest difference is update cadence: Sonu at every 3 weeks against ButeykoClinic®'s every 5 months. Sonu also leads on ratings volume (227 vs 3). ButeykoClinic®'s advantage is review sentiment (100% vs 74%) and rating (4.7 vs 4.4). On price, ads, in-app purchases and monetization model 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ButeykoClinic® holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Sonu has 227 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 74% of Sonu's written reviews are positive against 100% of ButeykoClinic®'s.

UpkeepUpdate frequency

Sonu ships an update every 3 weeks, ButeykoClinic® every 5 months. The most recent releases landed on September 14, 2026 and September 17, 2026 respectively.

Scorecard4 real differences · 6 level
Sonu versus ButeykoClinic®: the parameters behind the verdict, then further details
ParameterSonuButeykoClinic®
PriceFreeFree
Rating4.4 (227 ratings)4.7 (3 ratings) — better
Positive reviews74.5% of reviews100.0% of reviews — better
Number of ratings227 — better3
Update frequencyEvery 3 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.6 — better
Further details — not scored
Size191 MB61 MB
Age rating4+4+
DeveloperSound Health Systems, Inc.Oxygen Research Institute Ltd.

Customer experience

Sonu

All ratings227 ratings
Positive85.9%
Neutral3.5%
Negative10.6%
Written reviews47 reviews
Positive74.5%
Neutral4.3%
Negative21.3%

ButeykoClinic®

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Sonu

Reported bugs

6 issues
  • Infinite login loop
  • App locks after session end
  • Bluetooth connection issues
  • Offline mode non-functional
  • Cannot end session
Show 1 more
  • Server maintenance prevents app use

Requested features

11 requests
  • Bring back old features
  • Provide battery life indicator
  • Add warning for high audio
  • Restore alignment check
  • Allow disconnection from band
Show 6 more
  • Provide feedback on band connection status
  • Improve SONUcast loading time
  • Allow users to remove mediation sounds
  • Improve offline mode functionality
  • Add real number scales to data graphs
  • Enable Bluetooth connection to two devices simultaneously

ButeykoClinic®

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Sonu

No in-app purchases

None

ButeykoClinic®

No in-app purchases

Questions

Is Sonu free?
Sonu is free to download, with no in-app purchases.
Is ButeykoClinic® free?
ButeykoClinic® is free to download, with no in-app purchases.
Which has better reviews, Sonu or ButeykoClinic®?
ButeykoClinic® is rated higher. Sonu averages 4.4 out of 5 from 227 ratings, while ButeykoClinic® averages 4.7 from 3 ratings.
Do Sonu or ButeykoClinic® have ads?
Neither Sonu nor ButeykoClinic® shows ads.
Which is updated more often, Sonu or ButeykoClinic®?
Sonu ships an update every 3 weeks, and ButeykoClinic® every 5 months. Most recently, Sonu was updated on September 14, 2026 and ButeykoClinic® on September 17, 2026.

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