# Soundmondo vs SUS4 Loop Builder

The clearest difference is in-app purchases: Soundmondo at none against SUS4 Loop Builder's 3. SUS4 Loop Builder's advantage is update cadence (every 4 weeks vs every 3 months) and iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. SUS4 Loop Builder sells 3 in-app purchases, starting at $0.99 per month. Soundmondo asks for nothing beyond the download.

Soundmondo ships an update every 3 months, SUS4 Loop Builder every 4 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Soundmondo | SUS4 Loop Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (47 ratings)](https://appshunter.io/ios/app/soundmondo-us/id1035365526/reviews)** | — |
| Number of ratings | **47** | — |
| Positive reviews | 31.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 41 MB | 27 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Yamaha Corporation of America](https://appshunter.io/developer/408058585) | [ThePaulSmith](https://appshunter.io/developer/319584506) |

## What reviewers say

### Soundmondo

[App page](https://appshunter.io/ios/app/soundmondo-us/id1035365526)

This app is a social network for sharing synthesizer sounds. It provides access to a vast library of sounds and allows users to organize, share, and discover sounds from music creators worldwide. Connect your compatible Yamaha synthesizer to explore and share your creations.

**Highlights:** Social sharing network for synthesizer sounds, Access to over 50,000 Yamaha synthesizer sounds, Organize sounds into Set Lists, Built-in audition function for connected synthesizers, Custom QR code generator/scanner for sound sharing, Compatible with various Yamaha synthesizer models

**Features:** Vision Pro support

**In-app purchases:** none


### SUS4 Loop Builder

[App page](https://appshunter.io/ios/app/sus4-loop-builder-loop-pedal/id6777230284)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SUS4 Loop Builder Pro Monthly | $0.99 | per month |
| SUS4 All-Access | $4.99 | per month |
| SUS4 Loop Builder Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Soundmondo free?

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

### Is SUS4 Loop Builder free?

SUS4 Loop Builder is free to download, with in-app purchases available.

### Do Soundmondo or SUS4 Loop Builder have ads?

Neither Soundmondo nor SUS4 Loop Builder shows ads.

### Which is updated more often, Soundmondo or SUS4 Loop Builder?

Soundmondo ships an update every 3 months, and SUS4 Loop Builder every 4 weeks. Most recently, Soundmondo was updated on October 24, 2026 and SUS4 Loop Builder on October 25, 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.*