# Granular Synthesizer vs PULSE CoolCheck

The clearest difference is in-app purchases: PULSE CoolCheck at none against Granular Synthesizer's 3. Granular Synthesizer's advantage is update cadence (every 3 weeks vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Granular Synthesizer sells 3 one-off in-app purchases. PULSE CoolCheck asks for nothing beyond the download.

Granular Synthesizer ships an update every 3 weeks, PULSE CoolCheck every 12 months. The most recent releases landed on October 8, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Granular Synthesizer | PULSE CoolCheck |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 12 months |
| Monetization | Free with in-app purchases | — |
| Size | 73 MB | 1 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stanislav Duplinskiy](https://appshunter.io/developer/1529735040) | [Sensorist ApS](https://appshunter.io/developer/692718526) |

## What reviewers say

### Granular Synthesizer

[App page](https://appshunter.io/ios/app/granular-synthesizer/id1537443140)

Create unique sounds by manipulating audio granules. This app offers a library of granules, pre-made tracks, and adjustable sound parameters. You can also import your own music and share your creations.

**Highlights:** Granular sound library, Pre-made tracks, Adjustable sound parameters, Import from iTunes, Record and share functionality

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sound recording | $8.99 | one-time |
| All loops | $12.99 | one-time |
| Full pack | $14.99 | one-time |


### PULSE CoolCheck

[App page](https://appshunter.io/ios/app/pulse-coolcheck/id1595059272)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Granular Synthesizer free?

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

### Is PULSE CoolCheck free?

PULSE CoolCheck is free to download, with no in-app purchases.

### Do Granular Synthesizer or PULSE CoolCheck have ads?

Neither Granular Synthesizer nor PULSE CoolCheck shows ads.

### Which is updated more often, Granular Synthesizer or PULSE CoolCheck?

Granular Synthesizer ships an update every 3 weeks, and PULSE CoolCheck every 12 months. Most recently, Granular Synthesizer was updated on October 8, 2026 and PULSE CoolCheck on October 27, 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.*