Comparison

DigiKeys AUv3 Sequencer Plugin vs Spiral Chorus

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

Head to head
About

DigiKeys AUv3 Sequencer Plugin

This is a pattern-based MIDI sequencer plugin for AUv3 compatible hosts. It can drive external MIDI instruments or its internal sample-based audio engine. Create looped patterns, chain them into songs, and experiment with real-time performance modes.

Highlights
  • Pattern-based MIDI sequencing
  • Internal sample-based audio engine
  • 16 MIDI tracks per pattern
  • Song creation up to 256 patterns
  • Random pattern generator
  • Live matrix performance mode
  • Multi-Bus output support
Read full description

DigiKeys is an AUv3 compatible MIDI sequencer plugin for AUM or other AUv3 compatible host applications. DigiKeys is a pattern based sequencer which can be used to drive either external MIDI based AUv3 instruments, or the internal sample based audio engine. It can also be used as a 16 channel multi-timbral sound source accepting MIDI data on each of the 16 MIDI channels and routing to 16 internal instruments. This flexible design allows you to experiment with pattern based song construction using the DigiKeys sound engine, then map to external MIDI based synth engines once an idea needs expanding. The program was created specifically for AUM, but should function fine under any DAW of your choice (routing options permitting). The advantage of AUM is its unlimited routing flexibility, and the ability to split MIDI output in order to feed multiple AV3 sound sources DigiKeys allows you to create looped patterns which can later be chained into songs. Each pattern has 16 tracks (one for each MIDI channel) which can be up to 32 steps in length. Each track can have its own playback speed, transposition and effects routings. You can chain up to 256 of these patterns together into a song, and since each song is tied to a scale, you can use the transpose function to quickly create chord changes without needing to redesign your patterns. DigiKeys was designed to drive other MIDI compatible AUv3 plugins, but comes equiped with its own internal synth engine with over 100 custom presets. If you own the 4Pockets Chameleon sampler plugin, DigiKeys will auotmatically make those instruments available to you, so its easy to expand the library of instruments using Chameleon. The app has its own custom MIDI mixer, which controls incoming / outgoing MIDI velocity levels rather than traditional audio levels. This allows you to control relative volumes of internal as well as external MIDI instruments. It also allows DigiKeys to be used as a multi-timbral sound source with level mixing, by routing MIDI data on each of the 16 incoming ports to seperate instruments. DigiKeys features a sophisticated random pattern generator capable of taking advantage of random velocities, probability, note length, sub beats and reverse hits. It can even randomize targetted notes that comply to a chord in the song scale. The latest update introduces a live matrix performance mode that lets you mix tracks from different patterns in real time, creating scenes to aid your performance. Patterns and scenes can be triggered remotely from MIDI equipment sending simple note data on MIDI channel 16. Also recently added is the ability to route internal sound to different output busses for adding external effects in AUM. We also include 3 global effects, reverb, chorus and digital delay which allow per track routing. Features: • 16 MIDI tracks per pattern. • Randomize Patterns. • Up to 32 beats per pattern. • Songs up to 256 patterns in length. • Supports Multi-Bus out in AUM. • Definable track muting, repeat length and transposing per song step. • Selectable Key, Scale and Chords to use as guides. • Various edit modes allowing fades and drum rolls. • Supports Reverse Mode, Probability, Triplets etc.. • Ability to override the scale for drum tracks. • 16 channel Mixer. • Track Mutes and Solo options. • 8 band EQ. • Build in Delay, Reverb and Chorus. • Live Matrix. (iPad Only) • Remote pattern switching. • Chamelon Instrument Compatability. • Per pattern Automation. • Comprehensive clipboard functionality. • Local and Remote MIDI Sync. • Real time and Step pattern recording. • HTTP interface for backup / restore of songs.

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.

Screenshots

DigiKeys AUv3 Sequencer Plugin4 screens
Spiral Chorus1 screens

Verdict

The call

The clearest difference is price: Spiral Chorus at Free against DigiKeys AUv3 Sequencer Plugin's $9.99. Spiral Chorus also leads on rating (5.0 vs 4.3) and review sentiment (89% vs 79%). DigiKeys AUv3 Sequencer Plugin's advantage is in-app purchases (none vs 3) and update cadence (every 10 days vs every 15 months). On ratings volume, 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; DigiKeys AUv3 Sequencer Plugin costs $9.99 up front. Spiral Chorus sells 3 one-off in-app purchases. DigiKeys AUv3 Sequencer Plugin asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Spiral Chorus holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 19 and 15 respectively. Written reviews point the same way: 79% of DigiKeys AUv3 Sequencer Plugin's written reviews are positive against 89% of Spiral Chorus's.

UpkeepUpdate frequency

DigiKeys AUv3 Sequencer Plugin ships an update every 10 days, Spiral Chorus every 15 months. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.

Scorecard7 real differences · 3 level
DigiKeys AUv3 Sequencer Plugin versus Spiral Chorus: the parameters behind the verdict, then further details
ParameterDigiKeys AUv3 Sequencer PluginSpiral Chorus
Price$9.99Free — better
Rating4.3 (19 ratings)5.0 (15 ratings) — better
Positive reviews78.6% of reviews88.9% of reviews — better
Number of ratings19 — better15
Update frequencyEvery 10 days — betterEvery 15 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13 — better16.0
Further details — not scored
Size307 MB12 MB
Age rating4+4+
Developer4Pockets.comTom Power

Customer experience

DigiKeys AUv3 Sequencer Plugin

All ratings19 ratings
Positive84.2%
Neutral5.3%
Negative10.5%
Written reviews14 reviews
Positive78.6%
Neutral7.1%
Negative14.3%

Spiral Chorus

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

In-app purchases

None

DigiKeys AUv3 Sequencer Plugin

No in-app purchases

3 purchases

Spiral Chorus

One-time3
  • Small Tip$1.99
  • Medium Tip$4.99
  • Large Tip$9.99

Questions

Is DigiKeys AUv3 Sequencer Plugin free?
DigiKeys AUv3 Sequencer Plugin costs $9.99, with no in-app purchases.
Is Spiral Chorus free?
Spiral Chorus is free to download, with in-app purchases available.
Which has better reviews, DigiKeys AUv3 Sequencer Plugin or Spiral Chorus?
Spiral Chorus is rated higher. DigiKeys AUv3 Sequencer Plugin averages 4.3 out of 5 from 19 ratings, while Spiral Chorus averages 5.0 from 15 ratings.
Do DigiKeys AUv3 Sequencer Plugin or Spiral Chorus have ads?
Neither DigiKeys AUv3 Sequencer Plugin nor Spiral Chorus shows ads.
Which is updated more often, DigiKeys AUv3 Sequencer Plugin or Spiral Chorus?
DigiKeys AUv3 Sequencer Plugin ships an update every 10 days, and Spiral Chorus every 15 months. Most recently, DigiKeys AUv3 Sequencer Plugin was updated on October 20, 2026 and Spiral Chorus on October 13, 2026.

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