# Functional Harmony vs ZenWave · Sounds & BrainWaves

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.

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.

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.

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.

## The numbers

| Metric | Functional Harmony | ZenWave · Sounds & BrainWaves |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (25 ratings)](https://appshunter.io/ios/app/functional-harmony/id1564025162/reviews)** | [4.8 (166 ratings)](https://appshunter.io/ios/app/zenwave-sounds-and-brainwaves/id6505068535/reviews) |
| Number of ratings | 25 | **166** |
| Positive reviews | **83.3% of reviews** | 81.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 78 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dylan Shade](https://appshunter.io/developer/1564023750) | [Marvin Krueger](https://appshunter.io/developer/1152894281) |

## What reviewers say

### Functional Harmony

[App page](https://appshunter.io/ios/app/functional-harmony/id1564025162)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ZenWave · Sounds & BrainWaves

[App page](https://appshunter.io/ios/app/zenwave-sounds-and-brainwaves/id6505068535)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZenWave Premium Weekly | $3.99 | per 7 days |
| ZenWave PRO | $4.99 | per 7 days |
| Monthly | $9.99 | per month |
| ZenWave Premium | $9.99 | per month |
| Yearly | $17.99 | per year |
| Access to all Sessions | $17.99 | per year |
| ZenWave Premium | $19.99 | per year |
| ZenWave PRO | $39.99 | per year |
| All Sessions and Features | $29.99 | one-time |
| ZenWave Premium | $39.99 | one-time |

**What reviewers like**

- 🎧 High quality audio
- 😴 Effective for sleep
- 🧘‍♀️ Aids focus and meditation
- 🎶 Great variety of sounds
- ✨ Beautiful interface

**What reviewers complain about**

- 💸 In-app purchases (IAP)
- ❌ No free trial option
- 💳 Annual fee charged immediately
- 🤔 Meditation guides require reading
- 🐞 Glitches and bugs

**Reported bugs**

- 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**

- 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


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*