Spiral Chorus vs Helio Sequencer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Helio Sequencer
A free and open-source music sequencer designed for hobbyist composers, game developers, and indie artists. Comprehensive documentation is available to help users get started with its features.
- Open-source music sequencer
- Aimed at hobbyist composers
- Supports game developers
- For indie artists
- Includes documentation
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Helio is a free and open-source music sequencer aimed at hobbyist composers, game developers, and indie artists. Follow the documentation to get started: https://docs.helio.fm
Screenshots
Verdict
The clearest difference is rating: Spiral Chorus at 5.0 against Helio Sequencer's 4.4. Helio Sequencer's advantage is in-app purchases (none vs 3) and update cadence (every 3 months vs every 15 months). On price, review sentiment, ratings volume and ads 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. Spiral Chorus sells 3 one-off in-app purchases. Helio Sequencer asks for nothing beyond the download.
Spiral Chorus holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 15 and 13 respectively. Written reviews point the same way: 89% of Spiral Chorus's written reviews are positive against 86% of Helio Sequencer's.
Spiral Chorus ships an update every 15 months, Helio Sequencer every 3 months. The most recent releases landed on September 10, 2026 and September 6, 2026 respectively.
| Parameter | Spiral Chorus | Helio Sequencer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (15 ratings) — better | 4.4 (13 ratings) |
| Positive reviews | 88.9% of reviews — better | 85.7% of reviews |
| Number of ratings | 15 — better | 13 |
| Update frequency | Every 15 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Tom Power | Peter Rudenko |
Customer experience
Spiral Chorus
Helio Sequencer
In-app purchases
Spiral Chorus
- Small Tip$1.99
- Medium Tip$4.99
- Large Tip$9.99
Helio Sequencer
No in-app purchases
