Spiral Chorus vs Marimba
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
Read full descriptionHide full description
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.
Marimba
This app offers a high-quality sampled marimba instrument for iOS devices. It functions as a standalone application or an AUv3 plugin, featuring adjustable keyboard settings and built-in effects like reverb and delay. It supports external MIDI input for enhanced musical expression.
- Standalone app and AUv3 plugin
- High-quality sample-based marimba
- Configurable keyboard
- Reverb and delay effects
- MIDI input support
- Mac support
Read full descriptionHide full description
Marimba is a polyphonic sampled AUv3 instrument and standalone app for iPhone and iPad. It features a configurable keyboard, reverb and delay effects. It can be played using an external midi keyboard over Wifi or Bluetooth, or loaded in your favourite AUv3 compatible DAW, such as Garageband. Features • Standalone app and AUv3 • High quality sample based marimba instrument • Configurable keyboard key count • Reverb • Delay • Midi input support • Mac support System Requirements: iOS 15.0 or later
Screenshots
Verdict
The clearest difference is price: Spiral Chorus at Free against Marimba's $2.99. Spiral Chorus also leads on ratings volume (15 vs 1). Marimba's advantage is in-app purchases (none vs 3). On rating, update cadence, ads and device support 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
Spiral Chorus is free to download; Marimba costs $2.99 up front. Spiral Chorus sells 3 one-off in-app purchases. Marimba asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Spiral Chorus against 5.0 for Marimba. That said, the two scores are not equally well evidenced: Spiral Chorus has 15 ratings behind it against 1, so its average is the more settled of the two.
Spiral Chorus ships an update every 15 months, Marimba every 10 months. The most recent releases landed on September 10, 2026 and August 25, 2026 respectively.
| Parameter | Spiral Chorus | Marimba |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 5.0 (15 ratings) | 5.0 (1 ratings) |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 15 — better | 1 |
| Update frequency | Every 15 months | Every 10 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | Tom Power | Mellowmuse Ltd |
Customer experience
Spiral Chorus
Marimba
In-app purchases
Spiral Chorus
- Small Tip$1.99
- Medium Tip$4.99
- Large Tip$9.99
Marimba
No in-app purchases







