Comparison

StepPolyArp vs WOOTT

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

Head to head
About

StepPolyArp

This app functions as a real-time polyphonic and polyrhythmic MIDI step arpeggiator and sequencer. It can generate melodic patterns from input or operate as a standalone sequencer. Save and sync unlimited presets with iCloud, featuring extensive customization for patterns and step controllers.

Highlights
  • Standalone app and AUv3 MIDI effect plugin
  • Arpeggiator and step sequencer modes
  • Programmable step matrix with transposition lines
  • Polyrhythmic step controllers
  • Internal sound bank
  • Ableton Link and MIDI sync support
  • Unlimited preset saving with iCloud sync
Features
Read full description

"StepPolyArp" is a real-time polyphonic and polyrhythmic MIDI step arpeggiator and step sequencer. It can be used as a standalone application or as an AUv3 MIDI effect plug-in. The application and the plug-in can operate as a step arpeggiator, automatically generating melodic patterns from played notes or chords, or as a step sequencer that does not require MIDI input to play. Unlimited presets can be saved locally and synchronized with iCloud. Each preset contains 16 patterns, 5 customizable polyrhythmic step controllers, and a 32-step event matrix with 11 polyphonic and polyrhythmic lines driving the arpeggiator engine. The application supports full internal and external MIDI connections for input and output, Ableton Link synchronization, and MIDI clock synchronization. An internal sound bank is included. The AUv3 MIDI effect plug-in supports multiple instances. A compatible host is required to run the plug-in. The host must support the Audio Unit v3 (AUv3) MIDI effect format. Hosts supporting AUv3 MIDI effect on iOS: Logic Pro, Cubasis, Beatmaker, AUM, Audiobus, NanoStudio, Auria Pro, apeMatrix. Hosts supporting AUv3 MIDI effect on macOS: Logic Pro 10.7 or later. Features: • Standalone application and AUv3 MIDI effect plug-in • Arpeggiator and step sequencer mode • 1 to 32-step programmable matrix • 11 configurable transposition lines • Polyrhythmic lines and clock dividers per line • Mute by line • Gate, velocity, probability, random pitch, random gate, and random velocity per event • 16 patterns by preset • Automatic pattern chaining • 8-octave resizable keyboard • Multitasking support • Stop "Audio Background" automatically after inactivity (15 min, 30 min, 1 h, 2 h, or never) • Sample-accurate timing • Internal sound bank • Tap tempo • Receiving MIDI from external MIDI sources • Receiving external MIDI sync (MIDI clock) • Ableton Link support • Internal routing of inputs, outputs, and MIDI sync • Send MIDI to a virtual port usable as MIDI input by other "Core MIDI" compatible apps • Default velocity, modulation, pan, volume, aftertouch, and pitch bend step controllers • Customizable MIDI setup for step controllers • Arpeggiator and sequencer can conform to the selected scale • Predefined scales and possibility to create custom scales • 6 arpeggiator modes • 1 random mode • 1 chord mode • Randomization panel for generating random patterns with a large number of parameters to control the result • Preset manager with support for in-app purchase packs • "Program Change" support • Preset sharing via "AirDrop", "Mail", "Messages", and other supported services • Native iCloud support • "iCloud Drive" support in the "Files" app on iOS and "Finder" on macOS • Full support of "Windowed Apps" mode on iPad • Undo/Redo • Lockable keyboard (latch mode) Supported MIDI connections: • Virtual "Core MIDI" connections between applications • Any compatible MIDI interface • MIDI over Wi-Fi • MIDI over Bluetooth • Ableton Link (sync and transport)

About

WOOTT

This audio effect plugin enhances sounds by simultaneously compressing loud elements and amplifying quiet ones. It's designed to add massive proportions, aggressive edges, and bring out subtle details in audio, making it ideal for producers looking to add hype and excitement to their tracks.

Highlights
  • Triple band dynamics algorithm
  • Simultaneous downwards and upwards compression
  • Dedicated limiter per band
  • AUv3 audio unit effect plugin
  • Universal support (iOS and macOS)
  • Multi-output capability
  • Mono switch for low-band signal
Features
Currently charting
Read full description

WOOTT is an Audio Unit plugin (AUv3 audio effect) inspired by the infamous OTT sound. WOOTT uses a triple band dynamics algorithm with simultaneous downwards AND upwards compression, and adds a dedicated limiter to each band. So what's all that techno mumbojumbo good for? 1. First, it slams all the loud, dominant aspects of your sound 2. Next it blows up all the subtle quiet bits that were hiding below As a result, it's perfect for: - Blowing up average sounds to massive proportions - Giving an aggressive sharp edge to synthesizer filters - Bringing out subtle details and movement that would otherwise get lost in the mix (in a hamfisted way, though) - Dusting off old breakbeat samples and loops - Hyping specific aspects of your synth lines - Making generally boring things more interesting WOOTT features: - AUv3 audio unit effect plugin - Universal (all iPads and iPhones supported + MacOS M & Intel) - Runs in all your favorite AUv3 plugin hosts: Cubasis, AUM, Beatmaker 3, Nanostudio 2, Garageband, etc. - Multi-output (requires compatible host) for post-processing the individual bands - Low-resource, so stack as many of them as you like - "[WO]OTT all the things!" - Downwards *and* upwards compressors (a rare feature on conventional dynamics plugins) - Smart soft limiter per band, adapts to its own band's specific settings - Mono switch makes low-band signal monaural for an extra tight bass Note: this is not a subtle effect. If subtle and minimal are what you're after, this is not the droid you're looking for :-)

Screenshots

StepPolyArp3 screens
WOOTT3 screens

Verdict

The call

The clearest difference is price: WOOTT at $4.99 against StepPolyArp's $19.99. WOOTT also leads on in-app purchases (none vs 2) and chart position (#179 vs unranked). On rating, review sentiment, ratings volume and update cadence 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

StepPolyArp costs $19.99 and WOOTT $4.99 up front. StepPolyArp sells 2 one-off in-app purchases. WOOTT asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for StepPolyArp against 4.9 for WOOTT. Both are backed by a comparable volume of ratings — 48 and 54 respectively. Written reviews are what separate them: 87% of StepPolyArp's written reviews are positive against 91% of WOOTT's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 30, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 7 level
StepPolyArp versus WOOTT: the parameters behind the verdict, then further details
ParameterStepPolyArpWOOTT
Price$19.99$4.99 — better
Rating4.8 (48 ratings)4.9 (54 ratings) — better
Positive reviews86.7% of reviews90.9% of reviews — better
Number of ratings4854 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
Best chart rank—#179 — better
DevicesiPhone, iPad, iPod, MaciPhone, iPad, iPod, Mac
Requires iOS15.012.0 — better
Further details — not scored
Size38 MB2 MB
Age rating4+4+
DeveloperLaurent ColsonBram Bos

Customer experience

StepPolyArp

All ratings48 ratings
Positive97.9%
Neutral0.0%
Negative2.1%
Written reviews45 reviews
Positive86.7%
Neutral6.7%
Negative6.7%

WOOTT

All ratings54 ratings
Positive96.3%
Neutral1.9%
Negative1.9%
Written reviews22 reviews
Positive90.9%
Neutral4.5%
Negative4.5%

In-app purchases

2 purchases

StepPolyArp

One-time2
  • Dance Horizons$4.99
  • Analog Sequence$4.99
None

WOOTT

No in-app purchases

Questions

Is StepPolyArp free?
StepPolyArp costs $19.99, and also offers in-app purchases.
Is WOOTT free?
WOOTT costs $4.99, with no in-app purchases.
Which has better reviews, StepPolyArp or WOOTT?
WOOTT is rated higher. StepPolyArp averages 4.8 out of 5 from 48 ratings, while WOOTT averages 4.9 from 54 ratings.
Do StepPolyArp or WOOTT have ads?
Neither StepPolyArp nor WOOTT shows ads.
Which is updated more often, StepPolyArp or WOOTT?
StepPolyArp ships an update every 2 months, and WOOTT every 2 months. Most recently, StepPolyArp was updated on September 30, 2026 and WOOTT on September 20, 2026.

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