# Sound Oscilloscope vs Spectrolite

The clearest difference is review sentiment: Spectrolite at 83% against Sound Oscilloscope's 33%. Spectrolite also leads on rating (4.8 vs 3.3). Sound Oscilloscope's advantage is in-app purchases (none vs 1) and update cadence (every 9 days vs every 8 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Spectrolite sells 1 one-off in-app purchase. Sound Oscilloscope asks for nothing beyond the download.

Spectrolite holds the better App Store score, 4.8 against 3.3. Both are backed by a comparable volume of ratings — 24 and 65 respectively. Written reviews point the same way: 33% of Sound Oscilloscope's written reviews are positive against 83% of Spectrolite's.

Sound Oscilloscope ships an update every 9 days, Spectrolite every 8 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sound Oscilloscope | Spectrolite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (24 ratings)](https://appshunter.io/ios/app/sound-oscilloscope/id1442383439/reviews) | **[4.8 (65 ratings)](https://appshunter.io/ios/app/spectrolite/id1480240180/reviews)** |
| Number of ratings | 24 | **65** |
| Positive reviews | 33.3% of reviews | **83.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 8 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 1 MB |
| Requires iOS | **12.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shinichi Takemura](https://appshunter.io/developer/1441889523) | [Waxing Wave](https://appshunter.io/developer/392942046) |

## What reviewers say

### Sound Oscilloscope

[App page](https://appshunter.io/ios/app/sound-oscilloscope/id1442383439)

Visualize sound waves and analyze their frequency spectrum. This utility displays the waveform of various sounds, from your voice to musical instruments, and reveals their overtone structure. Explore the sonic characteristics of your environment with this straightforward tool.

**Highlights:** Shows sound waveform, Shows sound spectrum, Shows sound power level, Sensitive algorithm, Works from 30 Hz to 4000 Hz

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

**In-app purchases:** none


### Spectrolite

[App page](https://appshunter.io/ios/app/spectrolite/id1480240180)

This app visualizes sound in real-time using various spectrogram types. Explore detailed audio data with intuitive touch controls and adjustable parameters. An optional purchase unlocks advanced measurement tools.

**Highlights:** Real-time spectrogram visualization, Constant-Q, linear, and mel frequency scales, Full human hearing frequency range, Intuitive touch panning and zooming, Adjustable gain, Q, and other parameters, Pro version: grids, scales, spectrum view, tap-to-measure

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | one-time |


## Frequently asked questions

### Is Sound Oscilloscope free?

Sound Oscilloscope is free to download, with no in-app purchases.

### Is Spectrolite free?

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

### Which has better reviews, Sound Oscilloscope or Spectrolite?

Spectrolite is rated higher. Sound Oscilloscope averages 3.3 out of 5 from 24 ratings, while Spectrolite averages 4.8 from 65 ratings.

### Do Sound Oscilloscope or Spectrolite have ads?

Neither Sound Oscilloscope nor Spectrolite shows ads.

### Which is updated more often, Sound Oscilloscope or Spectrolite?

Sound Oscilloscope ships an update every 9 days, and Spectrolite every 8 months. Most recently, Sound Oscilloscope was updated on October 24, 2026 and Spectrolite on October 30, 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.*