One Loop vs Spiral Chorus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
One Loop
This app provides a 10-track loop station for musicians to create backing tracks and record musical ideas. It features studio-quality effects, advanced layer control, and MIDI support for hands-free performance.
- 10-track loop station
- Studio quality effects (EQ, Compression, Reverb)
- Advanced layer control and grouping
- Metronome with percussion
- MIDI support and mappable controls
- External audio interface support
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One Loop is a 10-track loop-station designed for singers, songwriters & instrumentalists. Whether you want a personalised backing track, or need to record an idea for your next big hit, One Loop brings performance and recording straight to your phone. Features: • Simple, easy to use looping. • Built-in studio quality effects: Noise Gate, EQ, Compression & Reverb. • Advanced layer control and grouping. • Metronome selection with a variety of backing percussion. • MIDI support and mappable control for hands free performance. • Supports external audio interfaces; up to 8 channels of audio input. Recording Whether you choose your device’s built-in microphone for quick and easy use, or an external interface for multiple routing options, One Loop encourages portable creativity. Don’t be restricted by the limitations of a computer when all you need is your phone… and something to record! Enjoy the app’s seamless looping and build up to 10 beautiful layers with ease. Save your projects for later reference, you’ll never forget those 3am ideas ever again! Make sure to wear headphones for clean recordings with no feedback issues. Complete Control One Loop gives you complete control to form your best ideas. Each layer is mute-able and has an adjustable volume slider to shape your overall sound. Assign each layer to a bank of 4 groups (A to D) for quick variation of instrumentation, or different sections of a song. Setup your Bluetooth or USB midi devices and assign their parameters to trigger any of One Loop’s functions for greater control and smooth performances. Manage Your Mix One Loop gives you the controls to refine your recordings with studio quality effects designed by audio engineers: Noise Gate, EQ, Compression and Reverb. Wherever you’re recording, either in a quiet room or a busy outdoor environment, you can reduce any unwanted noise by adjusting the Noise Gate’s threshold and envelope, to create cleaner recordings. Boost or Cut the Input’s EQ frequency bands (Low, Mid and High) with a +/- 15dB range to shape the sound of your loop layers. Adjust the acoustic environment of your mix, from a small garage to a large cathedral, by changing the size & effect percentage of the Reverb. Settle a busy, complex layered mix using the Bus Compressor’s threshold and ratio controls.
Spiral Chorus
This music effect plugin offers an analog-modeled LCR chorus with touch-friendly controls and immersive 3D visuals. It seamlessly integrates into DAWs for iOS, adding depth and texture to various music productions.
- Analog Modeled LCR Chorus
- Touch-Friendly Controls
- Immersive 3D Visuals
- Versatile Music Application
- Optimized for iOS
- Seamless DAW Integration
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FX Forms #001 - Spiral Chorus from Wild Surmise Music, number one in the series of AUv3 FX plugins. Key Features: - Analog Modeled LCR Chorus: Delve into the rich, warm textures of an analog-modeled LCR (Left-Center-Right) chorus effect, bringing a new dimension to your tracks. - Touch-Friendly Controls: With an interface tailored for iOS, Spiral Chorus offers intuitive, touch-friendly controls. Effortlessly sculpt your sound with responsive sliders and xy pads, ensuring a seamless workflow. - Immersive 3D Visuals: Enhance your audio manipulation experience with captivating 3D visuals in the background. - Versatile Application: Whether you're working on dreamy soundscapes, dynamic beats, or cutting-edge experimental sounds, Spiral Chorus adds a layer of depth and texture to your music. - Optimized for iOS: Crafted specifically for the iOS environment, Spiral Chorus ensures a stable, high-performance experience on your favorite devices. 3D Visuals leverage SceneKit and Metal Shaders providing good visual performance on iOS devices. - Seamless Integration: Use Spiral Chorus seamlessly within your favorite DAW as an AUv3 plugin, fitting perfectly into your existing workflow.
Screenshots
Verdict
The clearest difference is rating: Spiral Chorus at 5.0 against One Loop's 3.9. Spiral Chorus also leads on review sentiment (89% vs 60%) and monetization model (free vs free with in-app purchases). One Loop's advantage is update cadence (every 5 weeks vs every 15 months) and iOS requirement (11.0 vs 16.0). On price, ratings volume, ads and in-app purchases 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
Both are free to download. One Loop sells 1 one-off in-app purchase and Spiral Chorus sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Spiral Chorus holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 19 and 15 respectively. Written reviews point the same way: 60% of One Loop's written reviews are positive against 89% of Spiral Chorus's.
One Loop ships an update every 5 weeks, Spiral Chorus every 15 months. The most recent releases landed on September 23, 2026 and September 28, 2026 respectively.
| Parameter | One Loop | Spiral Chorus |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (19 ratings) | 5.0 (15 ratings) — better |
| Positive reviews | 60.0% of reviews | 88.9% of reviews — better |
| Number of ratings | 19 — better | 15 |
| Update frequency | Every 5 weeks — better | Every 15 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 77 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Caelum Audio | Tom Power |
Customer experience
One Loop
Spiral Chorus
In-app purchases
One Loop
- Full App Unlock$3.99
Spiral Chorus
- Small Tip$1.99
- Medium Tip$4.99
- Large Tip$9.99








