# Spectral Eye vs Cymatica

The clearest difference is in-app purchases: Spectral Eye at none against Cymatica's 4. Spectral Eye also leads on rating (4.9 vs 4.7) and review sentiment (89% vs 77%). Cymatica's advantage is update cadence (every 6 weeks vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. Cymatica sells 4 in-app purchases, starting at $3.99 per month. Spectral Eye asks for nothing beyond the download.

Spectral Eye holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 84 and 27 respectively. Written reviews point the same way: 89% of Spectral Eye's written reviews are positive against 77% of Cymatica's.

Spectral Eye ships an update every 7 months, Cymatica every 6 weeks. The most recent releases landed on October 13, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Spectral Eye | Cymatica |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (84 ratings)](https://appshunter.io/ios/app/spectral-eye/id546934084/reviews)** | [4.7 (27 ratings)](https://appshunter.io/ios/app/cymatica-music-visualizer/id6748863721/reviews) |
| Number of ratings | **84** | 27 |
| Positive reviews | **89.5% of reviews** | 76.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 19 MB |
| Requires iOS | **8.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Secret Base Design](https://appshunter.io/developer/413007812) | [Shridhar Gupta](https://appshunter.io/developer/386865394) |

## What reviewers say

### Spectral Eye

[App page](https://appshunter.io/ios/app/spectral-eye/id546934084)

Visualize the harmonic frequencies that make up sounds. This app uses a Fast Fourier transform to display sound components in a unique spiral arrangement, aligning octaves. It's ideal for musicians and sound enthusiasts to understand tonal differences and musical structures.

**Highlights:** Spiral frequency spectrum display, Fast Fourier transform analysis, Visualizes harmonic frequencies, Adjustable synthesizer with sine waves, MIDI input for triggering notes, Displays relative frequency strengths

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Innovative and useful tool
- 👍 Simple and excellent design
- 🤩 Fun and interesting to use
- 🔬 Great for sound analysis
- 🎵 Visualizes sound frequencies well

**What reviewers complain about**

- ⏳ Not updated in years
- ❌ Microphone stays on
- 📉 Lacks advanced features
- 🤔 Unclear feature functionality
- 🚫 No 432hz tuning option

**Reported bugs**

- Microphone stays on 24/7
- Does not work for some users
- App does not launch with AUM
- No audio received from Audiobus 3
- Error when launching with AUM

**Requested features**

- Add 432hz tuning option
- Show octave number of a note
- Improve microphone control (only when active)
- Make app open source
- Add iOS versions for Audiobus 3/AUM


### Cymatica

[App page](https://appshunter.io/ios/app/cymatica-music-visualizer/id6748863721)

Explore the universe's hidden mathematics by transforming sound into mesmerizing geometric sand patterns. This interactive physics simulation brings scientific principles to life with real-time calculations and haptic feedback.

**Highlights:** Interactive sand pattern simulation, Sound wave visualization, Haptic feedback, Real-time frequency calculations, Adjustable pattern complexity, Pattern saving, Dark mode

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cymatica Pro | $3.99 | per month |
| Cymatica Pro | $19.99 | per year |
| Unlock Sounds | $4.99 | one-time |
| Cymatica Pro Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Spectral Eye free?

Spectral Eye is free to download, with no in-app purchases.

### Is Cymatica free?

Cymatica is free to download, with in-app purchases available.

### Which has better reviews, Spectral Eye or Cymatica?

Spectral Eye is rated higher. Spectral Eye averages 4.9 out of 5 from 84 ratings, while Cymatica averages 4.7 from 27 ratings.

### Do Spectral Eye or Cymatica have ads?

Neither Spectral Eye nor Cymatica shows ads.

### Which is updated more often, Spectral Eye or Cymatica?

Spectral Eye ships an update every 7 months, and Cymatica every 6 weeks. Most recently, Spectral Eye was updated on October 13, 2026 and Cymatica on October 20, 2026.

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