Comparison

Midi Poly Grid vs ShapeStage Morphing AUv3 FX

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

Head to head
About

Midi Poly Grid

This app functions solely as a MIDI controller, requiring a host application or DAW to produce sound. It offers intuitive pad controls for melodies and finger drumming, with advanced modulation options like MPE and polyphonic aftertouch. Connect virtually or via USB/Bluetooth to other devices and DAWs.

Highlights
  • Size-adjustable grid of pads
  • MPE and polyphonic aftertouch modulation
  • Custom grid creation
  • Virtual MIDI connection
  • Preset saving
  • Multiple layouts and colors
Read full description

# Midi Poly Grid This App is Open Source. Access the code here: https://github.com/anzbert/beat_pads ## Important Disclaimer This App is **ONLY** usable as a Midi Controller. It does **NOT** produce any sound on its own and requires a host application or a second device with a DAW or other sound production app. ## Information Midi Poly Grid is a lightweight Midi Controller app for mobile phones and tablets for melodies and finger drumming at home and on the go. Connections can be made virtually to other apps via platform midi channels, or via USB or Bluetooth Midi to other devices. This app aims to be an easy-to-use pad input device featuring a variety of layouts, intuitive playability and modern modulation options, such as MPE and Polyphonic Aftertouch. It was designed for people that prefer pads to pianos! The focus of this app is not to be a jack-of-all-trades Midi swiss army knife, but instead to be a great at one thing: Intuitive and versatile pad controls. ## Features - A size-adjustable grid of pads for finger drumming and melody input - Various layouts and colors, inspired by the Ableton Push - Presets can be saved with different pad setups - Innovative MPE and polyphonic Aftertouch modulation with graphical feedback - Push Style MPE pitchbend and slide - Send Velocity by Y position on pad, randomly or with a fixed value - Usable as a standard MIDI device with any PC, Mac or other USB or Bluetooth device - Optional controls, such as Pitch Bend, Mod Wheel and Sustain - Highligh a large number of musical scales - Receives Midi Notes, making the pads usable like a Launchpad - Custom grid creation based on the note intervals on the X and Y Axis to create Grids inspired by the Harmonic Table, Wicki Hayden, MidiMech and others - Supports virtual Midi connection to other apps on your device - Built-In support for the popular finger drumming courses from XpressPads.com - And more... ## Feedback and Contributions Anyone is most welcome to contribute, report an issue or start a discussion in the Github repository. Thanks! ## Licence Licenced under GPL3. The code in this project is freely usable in any other open source project. Enjoy! ## iOS Specific Information Can be used with any Mac via USB, Bluetooth Midi or WiFi. Usage with PC is limited to WiFi with free third-party software (rtpMidi), and USB with third-party USB midi connectors, due to Apple's limited implementation of USB Midi on iOS. AUv3 is unfortunately not supported at this time, as it is currently impossible with Flutter. More info about that here: https://github.com/flutter/flutter/issues/16092

About

ShapeStage Morphing AUv3 FX

This audio effect processor allows for sophisticated sound transformation with multi-stage processing and a smooth morphing engine. Create evolving, dynamic effects by seamlessly blending between different processing stages, including drive, character, pitch shifting, and texture.

Highlights
  • Multi-stage processing (A, B, C, D)
  • Smooth morphing engine
  • Drive, character, drift, motion, flow, spread, texture FX
  • Comprehensive modulation system
  • Extensive modulation matrix
  • Intuitive user interface
  • AUv3 plugin format
Features
Read full description

ShapeStage - Morphing Audio Effect Processor ShapeStage is a powerful AUv3 audio effect plugin that brings sophisticated sound transformation capabilities to your iOS music production workflow. This versatile processor offers unprecedented control over your sound with its innovative multi-stage morphing architecture. Key Features: - Multi-Stage Processing: Shape your sound through four distinct processing stages (A, B, C, D), each with independent parameter settings for drive, character, pitch shifting, time effects, motion, stereo spread, and texture. - Smooth Morphing Engine: Seamlessly morph between stages to create evolving, dynamic effects that transform over time. Go from subtle warmth to extreme sonic manipulation with a single control. - Multiple FX Processors: - Drive: From subtle tube-like warmth to aggressive distortion that adds rich harmonic content - Character: Shape tonal quality with algorithms ranging from warm tape-like saturation to edgy wave-folding - Drift: Pitch shifting from -12 to +12 semitones with unique stereo detune capabilities - Motion: Delay processing (0-1000ms) with modulated feedback for evolving echo patterns - Flow: Dynamic feedback and modulation control creating movement within the time-based effects - Spread: Enhanced stereo imaging from focused center to dramatic width with frequency-dependent processing - Texture: Granular processing that creates complex sonic textures with variable density and character - Comprehensive Modulation System: - 3 flexible LFOs with multiple waveforms and tempo sync - 2 loopable envelope generators with MIDI trigger support - Envelope follower that responds to your audio's dynamics - Modulation matrix for complex routing possibilities - Extensive Modulation Matrix: Route any modulation source to virtually any parameter, with adjustable polarity and amount controls. Create pulsating rhythmic effects, smooth transitions, or dynamic responses to your playing. - Intuitive User Interface: Clearly organized controls with visual feedback make complex sound design accessible to musicians of all levels. - AUv3 Plugin Format: Works seamlessly with all AUv3-compatible hosts including AUM, Logic Pro, GarageBand, Loopy Pro, Cubasis, and more. Perfect For: - Adding movement and evolution to static sounds - Creating complex rhythmic effects that respond to your playing - Designing unique atmospheric textures and soundscapes - Adding character and dimension to any audio source - Building custom effect chains with precise control Transform your sounds from subtle enhancement to complete reinvention with ShapeStage. Whether you're looking for gentle harmonic saturation, wild pitch-shifted delays, or dynamically responsive filtering, ShapeStage delivers with unprecedented flexibility and control.

Screenshots

Midi Poly Grid4 screens
ShapeStage Morphing AUv3 FX4 screens

Verdict

The call

The clearest difference is rating: Midi Poly Grid at 5.0 against ShapeStage Morphing AUv3 FX's 4.0. Midi Poly Grid also leads on price ($3.99 vs $6.99). ShapeStage Morphing AUv3 FX's advantage is update cadence (daily vs every 11 days) and iOS requirement (12.0 vs 15.0). On review sentiment, ratings volume, ads and in-app purchases 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

Midi Poly Grid costs $3.99 and ShapeStage Morphing AUv3 FX $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Midi Poly Grid holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Midi Poly Grid ships an update every 11 days, ShapeStage Morphing AUv3 FX daily. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

Scorecard4 real differences · 6 level
Midi Poly Grid versus ShapeStage Morphing AUv3 FX: the parameters behind the verdict, then further details
ParameterMidi Poly GridShapeStage Morphing AUv3 FX
Price$3.99 — better$6.99
Rating5.0 (8 ratings) — better4.0 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings8 — better4
Update frequencyEvery 11 daysDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size24 MB15 MB
Age rating4+4+
DeveloperAndreas MuellerCem Olcay

Customer experience

Midi Poly Grid

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

ShapeStage Morphing AUv3 FX

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Midi Poly Grid

No in-app purchases

None

ShapeStage Morphing AUv3 FX

No in-app purchases

Questions

Is Midi Poly Grid free?
Midi Poly Grid costs $3.99, with no in-app purchases.
Is ShapeStage Morphing AUv3 FX free?
ShapeStage Morphing AUv3 FX costs $6.99, with no in-app purchases.
Which has better reviews, Midi Poly Grid or ShapeStage Morphing AUv3 FX?
Midi Poly Grid is rated higher. Midi Poly Grid averages 5.0 out of 5 from 8 ratings, while ShapeStage Morphing AUv3 FX averages 4.0 from 4 ratings.
Do Midi Poly Grid or ShapeStage Morphing AUv3 FX have ads?
Neither Midi Poly Grid nor ShapeStage Morphing AUv3 FX shows ads.
Which is updated more often, Midi Poly Grid or ShapeStage Morphing AUv3 FX?
Midi Poly Grid ships an update every 11 days, and ShapeStage Morphing AUv3 FX daily. Most recently, Midi Poly Grid was updated on October 24, 2026 and ShapeStage Morphing AUv3 FX on October 20, 2026.

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