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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Record a part, loop it, and stack the next one on top. Up to eight tracks, each with a level control, so the idea sounds like a song before you leave the room. Fully on-device: no cloud, no account. Start with a chord loop, add a bass line, then a melody. Undo the last layer if it was wrong. When it works, export the mixdown as an audio file. • Up to 8 loop tracks, with level and mute per track • Undo the last layer • Export the mixdown as an audio file • A library of saved loop sessions For guitarists and singers building song ideas, beatboxers, and anyone who uses a loop pedal on stage and wants one in their pocket. Pro, or SUS4 All-Access across the whole range, adds reverb, delay and 3-band EQ on each layer, stem export (every track as a separate file) and unlimited saved loops. Made in the UK by working musicians. 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 3) and update cadence (every 2 days vs every 4 weeks). 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 3 in-app purchases, starting at $0.99 per month. NuSaw asks for nothing beyond the download.
SUS4 Loop Builder ships an update every 4 weeks, NuSaw every 2 days. Both last shipped on October 25, 2026.
| Parameter | SUS4 Loop Builder | NuSaw |
|---|---|---|
| Price | Free — better | $6.99 |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Best chart rank | — | #194 — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | ThePaulSmith | Charles Vestal |
In-app purchases
SUS4 Loop Builder
- SUS4 Loop Builder Pro Monthly7 Days trial$0.991 Month
- SUS4 All-Access7 Days trial$4.991 Month
- SUS4 Loop Builder Lifetime$59.99
NuSaw
No in-app purchases









