Comparison

Sonu vs Sway

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

Sway

Features
Read full description

Sway is a simple daily practice app for breathing, reflection, and intentional living. Start a guided breathing session, check in with how you feel, write private reflection notes, and build small practices that help you move through the day with more calm and clarity. Sway is designed to feel quiet, focused, and easy to return to. Instead of overwhelming you with streak pressure or complicated tracking, it gives you a few gentle tools for noticing what supports you. Features include: • Guided breathing practices • Reflection notes for journaling how you feel • Intentional practices for the habits and activities that help you feel more alive • Sway State, a simple view of recent patterns across your practices • Breathwork history and trends • Optional Apple Health integration for sleep-related context • Home Screen widgets for quick daily visibility • Local reminders to help you return to your practice Sway is private by design. There are no accounts, no subscriptions, no cloud syncing, and no data tracking. Your reflections and practice history stay on your device. Sway is not medical advice and is not intended to diagnose, treat, cure, or prevent any condition. It is a personal wellness tool for building a steadier daily rhythm.

Screenshots

Sonu4 screens
Sway4 screens

Verdict

The call

The clearest difference is price: Sonu at Free against Sway's $4.99. On update cadence, 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

Sonu is free to download; Sway costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sonu ships an update every 3 weeks, Sway every 2 weeks. The most recent releases landed on October 23, 2026 and October 13, 2026 respectively.

Scorecard1 real difference · 9 level
Sonu versus Sway: the parameters behind the verdict, then further details
ParameterSonuSway
PriceFree — better$4.99
Rating4.4 (232 ratings) — better—
Positive reviews71.7% of reviews—
Number of ratings232 — better—
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size209 MB6 MB
Age rating4+4+
DeveloperSound Health Systems, Inc.Keith Court Co., LLC

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

Sway

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Sonu

No in-app purchases

None

Sway

No in-app purchases

Questions

Is Sonu free?
Sonu is free to download, with no in-app purchases.
Is Sway free?
Sway costs $4.99, with no in-app purchases.
Do Sonu or Sway have ads?
Neither Sonu nor Sway shows ads.
Which is updated more often, Sonu or Sway?
Sonu ships an update every 3 weeks, and Sway every 2 weeks. Most recently, Sonu was updated on October 23, 2026 and Sway on October 13, 2026.

Other comparisons