SUS4 Loop Builder vs NuSaw
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SUS4 Loop Builder
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Build a song one loop at a time. A looper and multitrack overdub tool for guitar, vocals and anything with a mic. Layer parts, keep them in time, and export stems when the idea is worth finishing. SUS4 Loop Builder is a multi-track looper for building song ideas from scratch. Record a bass line into the first layer, layer a chord progression over it, add a melody on top, and keep going until the idea has a shape. Each layer has its own level and effect controls so the mix develops as you build. When you have something, export the full mix or individual stems to your DAW for proper production. The loop library saves your builds so you can come back to them, reference them, or share a stem with a collaborator. • Multi-track looping — record and layer on top of previous loops • Per-layer level and effects controls • Loop library for saving and revisiting ideas • Stem export — export individual layers or the full mix • Multi-track export to your DAW • Subscribe monthly, or unlock the full SUS4 suite forever: unlimited loops, multi-track export, per-layer effects, and the full loop library All recording stays on your device. No audio is uploaded. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
NuSaw
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.
- 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
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NuSaw is a polyphonic SuperSaw synthesizer: the huge, detuned '90s dance sound, built for accuracy and tuned to fill the room. At its heart is a stack of 3 to 25 detuned sawtooth oscillators with a sine sub, a resonant lowpass filter, and dual ADSR envelopes for amp and filter. On top sits a full effects chain: an accurately modeled chorus, a tempo-syncable stereo ping-pong delay, plate reverb, and drive. Motion is built in: three LFOs, a flexible modulation matrix, a sequenced gate, and an arpeggiator, so patches breathe, wobble, all on their own. • 50+ factory presets: leads, basses, stabs, pads, strings, arps, and keys • Authentically modeled SuperSaw engine with accurate drift and stereo spread • FX rack with authentic chorus + ping-pong delay + reverb + drive • 3 LFOs, mod matrix, sequenced gate, and arpeggiator • Resonant switchable filter, with slope control and key tracking • Save and share your own patches • AUv3 plug-in for AUM, Logic, GarageBand, Cubasis, and more, plus a full standalone app with an on-screen keyboard Whether you're chasing a festival trance lead, a snarling Reese bass, or a wide evolving pad, NuSaw gets you there fast. Not affiliated with or endorsed by Roland Corporation. Roland, JP-8000 and JP-8080 are trademarks of Roland Corporation, used for reference only.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SUS4 Loop Builder | NuSaw |
|---|---|---|
| Price | Free — better | $6.99 |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | ThePaulSmith | Charles Vestal |
In-app purchases
SUS4 Loop Builder
- SUS4 Loop Builder Pro Monthly$0.991 Month
- SUS4 All-Access7 Days trial$4.991 Month
NuSaw
No in-app purchases









