Comparison

Functional Harmony vs ZenWave · Sounds & BrainWaves

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

Head to head
About

Functional Harmony

This music theory app helps users spell chords and scales by entering a root note. It also identifies intervals when two notes are provided. Learn music theory concepts quickly and easily.

Highlights
  • Spell chords
  • Spell scales
  • Identify intervals
  • Enter root note for chords/scales
  • Enter two notes for interval identification
Features
Read full description

Functional Harmony is a fast music theory desk for players and students. Build chords and scales from a root and quality. Identify harmony from notes. Or just Ask—type a chord, scale, or note stack in plain English and jump straight to the answer. SCALE FINDER • Choose a root and scale quality—major, minor, modes, pentatonic, and more • See every degree spelled clearly for practice and ear training • Perfect when you need a quick scale finder without flipping textbooks CHORD BUILDER & CHORD ID • Spell major, minor, sevenths, suspended, augmented, diminished, and more • Stack notes in the Notes tab to identify chords and intervals (reverse lookup) • Piano-friendly note entry with accidentals—great as a chord identifier ASK • Natural-language queries: “C major 7”, “F# dorian”, “C E G” • Live preview before you open Chords, Scales, or Notes • Built for homework, rehearsals, and songwriting sessions WHY FUNCTIONAL HARMONY • Chords, scales, and note identification in one app • Clean, bottom-anchored controls designed for one-handed practice • No accounts, no clutter—just theory when you need it Whether you call it a scale finder, chord identifier, or harmony lab, Functional Harmony keeps tonal music theory at your fingertips.

About

ZenWave · Sounds & BrainWaves

This app offers a collection of soothing sounds and binaural beats designed to promote deep relaxation, improve focus, and aid in sleep. It features customizable sessions, offline listening, and progress tracking through HealthKit integration.

Highlights
  • Binaural beats for sleep, focus, and meditation
  • Soothing ambient sounds and isochronic tones
  • Offline listening for downloaded sessions
  • HealthKit integration for progress tracking
  • Customizable sound experience
  • Timed sessions for automatic start/stop
Features
Read full description

Are you looking for an app that helps you with deep relaxation?
 Do you want to download an app to practice mindful meditation and improve your focus?
 Are you facing anxiety, depression, or problems while sleeping, and want to reduce your stress and improve sleep? If yes, then look no further than the ZenWave!! It is one of the best meditation apps that is designed to provide soothing sounds which ultimately help you in relaxation, meditation, and getting rid of sleeping problems. ZenWave comes with high-quality peaceful sounds that help you reduce stress, improve focus in your life along with sleep problems. + A wide range of binaural beats that help you with sleep, focus, and meditation
 + Soothing ambient sounds and isochronic tones are added to improve your concentration
 + Download sessions within the app to listen to binaural beats offline without any interruption
 + HealthKit feature is added to help you track your progress while improving your focus and sleep   How ZenWave Works? + Install ZenWave App
 + Set daily reminders to practice daily and stay consistent
 + You can also add reminders multiple times a day to practice mindfulness
 + Allow Health Permissions to ZenWave app so, that we can better know about you
 + Begin your mindfulness journey and enjoy a more focused life!   Main Features of ZenWave: + An intuitive user interface
 + Clear and high-quality sounds
 + Get customizable experience by adjusting the volume and choosing different background sounds
 + Pick between two types of sound waves to get a better experience and improve concentration
 + A wide range of sessions including relax, pure beats, noises, sleep, focus, and meditate
 + Fall asleep easily with relaxing tunes and binaural beats
 + Set a time to start and stop any session automatically so, you won’t have to listen beats all the night
 + Download your favorite sessions that suits your needs to listen them anytime without any interruption
 + Track your progress of meditation and mindful minutes by connecting ZenWave with Apple Health!   So, why wait? Download ZenWave now! Start listening to peaceful rainforest sounds, gentle winds, and ocean waves. Practice meditation and improve concentration in your real life. Fall asleep easily without thinking about something that make you depress.   Access most of the sessions for free or Upgrade to premium version to enjoy the ultimate ZenWave app. The premium version includes features like: + Access to all sessions 
 + Unlimited daily reminders 
 + Track mindful minutes to improve focus
 + Premium version also support further updates   Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Functional Harmony4 screens
ZenWave · Sounds & BrainWaves4 screens

Verdict

The call

The clearest difference is in-app purchases: Functional Harmony at none against ZenWave · Sounds & BrainWaves's 10. ZenWave · Sounds & BrainWaves's advantage is update cadence (every 2 weeks vs every 6 months) and ratings volume (166 vs 25). On price, rating, review sentiment and ads 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. ZenWave · Sounds & BrainWaves sells 10 in-app purchases, starting at $3.99 per 7 days. Functional Harmony asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Functional Harmony against 4.8 for ZenWave · Sounds & BrainWaves. That said, the two scores are not equally well evidenced: ZenWave · Sounds & BrainWaves has 166 ratings behind it against 25, so its average is the more settled of the two. Written reviews are what separate them: 83% of Functional Harmony's written reviews are positive against 81% of ZenWave · Sounds & BrainWaves's.

UpkeepUpdate frequency

Functional Harmony ships an update every 6 months, ZenWave · Sounds & BrainWaves every 2 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 6 level
Functional Harmony versus ZenWave · Sounds & BrainWaves: the parameters behind the verdict, then further details
ParameterFunctional HarmonyZenWave · Sounds & BrainWaves
PriceFreeFree
Rating4.9 (25 ratings) — better4.8 (166 ratings)
Positive reviews83.3% of reviews — better81.3% of reviews
Number of ratings25166 — better
Update frequencyEvery 6 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size24 MB78 MB
Age rating4+4+
DeveloperDylan ShadeMarvin Krueger

Customer experience

Functional Harmony

All ratings24 ratings
Positive95.8%
Neutral4.2%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral16.7%
Negative0.0%

ZenWave · Sounds & BrainWaves

All ratings164 ratings
Positive97.6%
Neutral0.6%
Negative1.8%
Written reviews48 reviews
Positive81.3%
Neutral4.2%
Negative14.6%

Bugs and requests

Functional Harmony

Not enough reviews yet to summarise bugs or requests.

ZenWave · Sounds & BrainWaves

Reported bugs

5 issues
  • App plays after closing
  • Settings revert to default
  • Cannot connect via AirPlay
  • Back button not working on some devices (iPad, iPhone)
  • Free trial not working

Requested features

6 requests
  • Sleep timer feature
  • Vietnamese language support
  • Timed playlists for longer sessions
  • Layout enhancements for sleep timer and breathing controls
  • Track descriptions at the top of the screen
Show 1 more
  • More sessions/content

In-app purchases

None

Functional Harmony

No in-app purchases

10 purchases

ZenWave · Sounds & BrainWaves

Subscriptions8
  • ZenWave Premium Weekly3 Days trial$3.997 Days
  • ZenWave PRO$4.997 Days
  • Monthly$9.991 Month
Show 5 more
  • ZenWave Premium$9.991 Month
  • Yearly$17.991 Year
  • Access to all Sessions$17.991 Year
  • ZenWave Premium$19.991 Year
  • ZenWave PRO7 Days trial$39.991 Year
One-time2
  • All Sessions and Features$29.99
  • ZenWave Premium$39.99

Questions

Is Functional Harmony free?
Functional Harmony is free to download, with no in-app purchases.
Is ZenWave · Sounds & BrainWaves free?
ZenWave · Sounds & BrainWaves is free to download, with in-app purchases available.
Which has better reviews, Functional Harmony or ZenWave · Sounds & BrainWaves?
Functional Harmony is rated higher. Functional Harmony averages 4.9 out of 5 from 25 ratings, while ZenWave · Sounds & BrainWaves averages 4.8 from 166 ratings.
Do Functional Harmony or ZenWave · Sounds & BrainWaves have ads?
Neither Functional Harmony nor ZenWave · Sounds & BrainWaves shows ads.
Which is updated more often, Functional Harmony or ZenWave · Sounds & BrainWaves?
Functional Harmony ships an update every 6 months, and ZenWave · Sounds & BrainWaves every 2 weeks. Most recently, Functional Harmony was updated on October 24, 2026 and ZenWave · Sounds & BrainWaves on October 21, 2026.

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