# SUS4 Loop Builder vs NuSaw

The clearest difference is price: SUS4 Loop Builder at Free against NuSaw's $6.99. NuSaw's advantage is in-app purchases (none vs 2) and update cadence (every 2 days vs monthly). On ads, device support and iOS requirement there is nothing between them.

SUS4 Loop Builder is free to download; NuSaw costs $6.99 up front. SUS4 Loop Builder sells 2 in-app purchases, starting at $0.99 per month. NuSaw asks for nothing beyond the download.

SUS4 Loop Builder ships an update monthly, NuSaw every 2 days. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | SUS4 Loop Builder | NuSaw |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/nusaw/id6780137615/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | — | Paid |
| Size | 20 MB | 11 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [ThePaulSmith](https://appshunter.io/developer/319584506) | [Charles Vestal](https://appshunter.io/developer/1825037198) |

## What reviewers say

### SUS4 Loop Builder

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

**Features:** Vision Pro support

**In-app purchases (2)**

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


### NuSaw

[App page](https://appshunter.io/ios/app/nusaw/id6780137615)

Create massive, detuned '90s dance sounds with this polyphonic synthesizer. Features a stack of sawtooth oscillators, a resonant filter, and a full effects chain. Generate dynamic patches with LFOs, a modulation matrix, and an arpeggiator.

**Highlights:** Polyphonic SuperSaw engine, Detuned sawtooth oscillators, Resonant low-pass filter, Full effects chain (chorus, delay, reverb, drive), Multiple LFOs and modulation matrix, Sequenced gate and arpeggiator, AUv3 plugin and standalone app

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SUS4 Loop Builder free?

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

### Is NuSaw free?

NuSaw costs $6.99, with no in-app purchases.

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

Neither SUS4 Loop Builder nor NuSaw shows ads.

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

SUS4 Loop Builder ships an update monthly, and NuSaw every 2 days. Most recently, SUS4 Loop Builder was updated on October 12, 2026 and NuSaw on October 11, 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.*