# Tone Gen Pro vs Granula Synth

The clearest difference is review sentiment: Tone Gen Pro at 75% against Granula Synth's 20%. Tone Gen Pro also leads on rating (4.5 vs 1.8) and update cadence (every 3 months vs every 25 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Tone Gen Pro sells 1 one-off in-app purchase and Granula Synth sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Tone Gen Pro holds the better App Store score, 4.5 against 1.8. That said, the two scores are not equally well evidenced: Tone Gen Pro has 48 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 75% of Tone Gen Pro's written reviews are positive against 20% of Granula Synth's.

Tone Gen Pro ships an update every 3 months, Granula Synth every 25 months. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Tone Gen Pro | Granula Synth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (48 ratings)](https://appshunter.io/ios/app/tone-gen-pro/id1448112303/reviews)** | [1.8 (4 ratings)](https://appshunter.io/ios/app/granula-synth/id1624549704/reviews) |
| Number of ratings | **48** | 4 |
| Positive reviews | **75.0% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 25 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 44 MB | 75 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Ibrahim Al-Sammarraie](https://appshunter.io/developer/1448112302) | [Stanislav Duplinskiy](https://appshunter.io/developer/1529735040) |

## 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 |


### Granula Synth

[App page](https://appshunter.io/ios/app/granula-synth/id1624549704)

Explore new soundscapes by manipulating granular audio. This app offers a library of presets, custom sound import, and extensive parameter adjustments for unique music creation. Save your settings and share your sonic experiments.

**Highlights:** Granular sound manipulation, Preset library, Custom sound import, Parameter adjustment, Save user settings, Share audio recordings

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access to app features | $2.99 | per month |
| Access to app features | $7.49 | per 3 months |
| Access to app features | $8.99 | per 6 months |


## Frequently asked questions

### Is Tone Gen Pro free?

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

### Is Granula Synth free?

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

### Which has better reviews, Tone Gen Pro or Granula Synth?

Tone Gen Pro is rated higher. Tone Gen Pro averages 4.5 out of 5 from 48 ratings, while Granula Synth averages 1.8 from 4 ratings.

### Do Tone Gen Pro or Granula Synth have ads?

Neither Tone Gen Pro nor Granula Synth shows ads.

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

Tone Gen Pro ships an update every 3 months, and Granula Synth every 25 months. Most recently, Tone Gen Pro was updated on October 24, 2026 and Granula Synth on October 18, 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.*