Comparison

Sonu vs Empower Sleep

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

Empower Sleep

Track your sleep patterns to receive personalized insights and a tailored care plan. Consult with a professional sleep care team for science-backed treatments like CBTi therapy or CPAP. An FDA-approved at-home sleep test helps diagnose and treat sleep issues.

Highlights
  • Sleep tracking and insights
  • Personalized care plans
  • Professional sleep care team
  • At-home sleep testing (SleepImage)
  • Diagnosis and treatment of sleep apnea
  • CBTi therapy and CPAP support
Features
Read full description

Track your sleep to unlock personalized insights and trends. Our data-driven approach removes the "guessing game" and develops the best care plan for you. Consult with an accredited Empower Sleep Care team whenever you need them. Everyone's sleep is different, so cookie-cutter sleep care doesn't work. That's why the Empower Sleep team will develop a personalized care plan for you, whether these are Behavior Changes, CPAP, Oral Appliance, CBTi therapy, or other science and clinically tested treatments. TESTIMONIALS "I'm very thankful to have discovered Empower Sleep. My life has improved for the better, no longer living in a fog during the day, feeling better, and more hopeful for the future." - Todd, May 30, 2023 "I highly recommend Dr. Chopra and his staff. They were very friendly and helped me with my sleep anyway they could." - Ercan, May 9, 2023 "Our experience with Empower Sleep was very pleasant, professional, and informative. The equipment that my daughter easily wore at night, gave us data that enabled us to help her. Even though we sleep for 1/3 of our life, we have no real understanding of sleep quality and sleep patterns. " - Angela, May 25, 2023 SLEEP TEST Empower Sleep uses SleepImage, an FDA-approved at-home sleep test worn on your finger and minimally disruptive to your sleep. This convenient and comfortable ring can be used for multiple nights and is designed to aid in the diagnosis and treatment of sleep apnea. The care team prescribes the longitudinal sleep study, and you get sleep test results after every night of sleep. Empower Sleep is using data collected using the SleepImage sleep test, which has been certified by the FDA as a Medical Device for use in the US and is granted a CE Medical Device mark for use in Europe. DISCLAIMER The Empower Sleep app is not designed or intended to diagnose, treat, cure, or prevent any disease or condition without a doctor's visit. Users should make medical decisions only through consultation with Empower Sleep physicians. For additional information: Privacy Policy: https://www.empowersleep.com/privacy-policy Terms of Service: https://www.empowersleep.com/terms-of-use

Screenshots

Sonu4 screens
Empower Sleep4 screens

Verdict

The call

The clearest difference is rating: Empower Sleep at 4.9 against Sonu's 4.4. Empower Sleep also leads on review sentiment (95% vs 72%) and iOS requirement (16.0 vs 18.0). Sonu's advantage is ratings volume (232 vs 61). On price, update cadence, ads and in-app purchases 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

Empower Sleep holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 232 and 61 respectively. Written reviews point the same way: 72% of Sonu's written reviews are positive against 95% of Empower Sleep's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
Sonu versus Empower Sleep: the parameters behind the verdict, then further details
ParameterSonuEmpower Sleep
PriceFreeFree
Rating4.4 (232 ratings)4.9 (61 ratings) — better
Positive reviews71.7% of reviews94.7% of reviews — better
Number of ratings232 — better61
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.016.0 — better
Further details — not scored
Size209 MB17 MB
Age rating4+17+
DeveloperSound Health Systems, Inc.Empower Sleep Inc.

Customer experience

Sonu

All ratings232 ratings
Positive84.9%
Neutral3.4%
Negative11.6%
Written reviews53 reviews
Positive71.7%
Neutral3.8%
Negative24.5%

Empower Sleep

All ratings61 ratings
Positive98.4%
Neutral0.0%
Negative1.6%
Written reviews19 reviews
Positive94.7%
Neutral0.0%
Negative5.3%

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

Empower Sleep

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Sonu

No in-app purchases

None

Empower Sleep

No in-app purchases

Questions

Is Sonu free?
Sonu is free to download, with no in-app purchases.
Is Empower Sleep free?
Empower Sleep is free to download, with no in-app purchases.
Which has better reviews, Sonu or Empower Sleep?
Empower Sleep is rated higher. Sonu averages 4.4 out of 5 from 232 ratings, while Empower Sleep averages 4.9 from 61 ratings.
Do Sonu or Empower Sleep have ads?
Neither Sonu nor Empower Sleep shows ads.
Which is updated more often, Sonu or Empower Sleep?
Sonu ships an update every 3 weeks, and Empower Sleep every 3 weeks. Most recently, Sonu was updated on October 23, 2026 and Empower Sleep on October 27, 2026.

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