# Tone Gen Pro vs Spectrolite

The clearest difference is rating: Spectrolite at 4.8 against Tone Gen Pro's 4.5. Spectrolite also leads on review sentiment (83% vs 75%). Tone Gen Pro's advantage is update cadence (every 3 months vs every 8 months) and iOS requirement (12.0 vs 15.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Tone Gen Pro sells 1 one-off in-app purchase and Spectrolite sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Spectrolite holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 45 and 51 respectively. Written reviews point the same way: 75% of Tone Gen Pro's written reviews are positive against 83% of Spectrolite's.

Tone Gen Pro ships an update every 3 months, Spectrolite every 8 months. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Tone Gen Pro | Spectrolite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (45 ratings)](https://appshunter.io/ios/app/tone-gen-pro/id1448112303/reviews) | **[4.8 (51 ratings)](https://appshunter.io/ios/app/spectrolite/id1480240180/reviews)** |
| Number of ratings | 45 | **51** |
| Positive reviews | 75.0% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 44 MB | 1 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Ibrahim Al-Sammarraie](https://appshunter.io/developer/1448112302) | [Waxing Wave](https://appshunter.io/developer/392942046) |

## What reviewers say

### Tone Gen Pro

[App page](https://appshunter.io/ios/app/tone-gen-pro/id1448112303)

Create various audio signals, including single tones, sweeps, and merged sounds, with extensive parameter control. Ideal for students, musicians, educators, and audio professionals exploring sound.

**Highlights:** Generate single type signals (sine, square, noise), Create sweep (chirp) signals (linear/exponential), Generate click signals with adjustable duty cycle, Merge multiple tones and sweeps, Frequencies up to 20 kHz, Extensive parameter control

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tone Gen Pro Full | $1.99 | one-time |


### 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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Tone Gen Pro free?

Tone Gen Pro is free to download, with in-app purchases available.

### Is Spectrolite free?

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

### Which has better reviews, Tone Gen Pro or Spectrolite?

Spectrolite is rated higher. Tone Gen Pro averages 4.5 out of 5 from 45 ratings, while Spectrolite averages 4.8 from 51 ratings.

### Do Tone Gen Pro or Spectrolite have ads?

Neither Tone Gen Pro nor Spectrolite shows ads.

### Which is updated more often, Tone Gen Pro or Spectrolite?

Tone Gen Pro ships an update every 3 months, and Spectrolite every 8 months. Most recently, Tone Gen Pro was updated on October 13, 2026 and Spectrolite on October 9, 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.*