Comparison

Spiral Chorus vs Marimba

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Analog Modeled LCR Chorus
  • Touch-Friendly Controls
  • Immersive 3D Visuals
  • Versatile Music Application
  • Optimized for iOS
  • Seamless DAW Integration
Features
Read 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.

About

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.

Highlights
  • Standalone app and AUv3 plugin
  • High-quality sample-based marimba
  • Configurable keyboard
  • Reverb and delay effects
  • MIDI input support
  • Mac support
Features
Read 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

Spiral Chorus1 screens
Marimba3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Spiral Chorus versus Marimba: the parameters behind the verdict, then further details
ParameterSpiral ChorusMarimba
PriceFree — better$2.99
Rating5.0 (15 ratings)5.0 (1 ratings)
Positive reviews88.9% of reviews—
Number of ratings15 — better1
Update frequencyEvery 15 monthsEvery 10 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size12 MB92 MB
Age rating4+4+
DeveloperTom PowerMellowmuse Ltd

Customer experience

Spiral Chorus

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive88.9%
Neutral11.1%
Negative0.0%

Marimba

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Spiral Chorus

One-time3
  • Small Tip$1.99
  • Medium Tip$4.99
  • Large Tip$9.99
None

Marimba

No in-app purchases

Questions

Is Spiral Chorus free?
Spiral Chorus is free to download, with in-app purchases available.
Is Marimba free?
Marimba costs $2.99, with no in-app purchases.
Which has better reviews, Spiral Chorus or Marimba?
Spiral Chorus and Marimba are both rated 5.0 out of 5 on the App Store, from 15 and 1 ratings respectively.
Do Spiral Chorus or Marimba have ads?
Neither Spiral Chorus nor Marimba shows ads.
Which is updated more often, Spiral Chorus or Marimba?
Spiral Chorus ships an update every 15 months, and Marimba every 10 months. Most recently, Spiral Chorus was updated on September 10, 2026 and Marimba on August 25, 2026.

Other comparisons