Comparison

Polybeep vs Grid Music Midi Player

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

Head to head
About

Polybeep

Create unique music with a polyrhythmic sound machine. Record or load samples, arrange them into looping shapes, and apply various effects. MIDI input is supported, and songs can be exported as WAV files.

Highlights
  • Polyrhythmic sound generation
  • Record microphone audio
  • Load sample files
  • Looping shape arrangement
  • Extensive audio effects
  • MIDI input support
  • Export to WAV
Features
Read full description

From the creators of DefleMask and Minimic, introducing Polybeep, a magnificent polyrhythmic sound machine designed to unlock your creativity. We even prepared a built-in tutorial to get you started. With aesthetically pleasing colors and design alongside unmatched visual feedback, you can really feel the beeping beeps and the poly rhythms. Yes, you can set up polyrhythms as easy as 3-4-5. You can record sounds directly from your microphone or load sample files. There’s some magic to make them sound great. Arrange the sounds into up to 6 looping shapes that can be configured as polygons of 3~16 vertices, then tweak their effects (delay, reverb, EQ, panning, chorus, and more), make a sequence of many melodies, and you’ll have a song in no time! You can even tap to change the tempo based on a rhythmic pulse. MIDI device input is as well supported! MIDI output coming soon! (notes, sync) macOS version is also available! Polybeep has been designed with a touch screen in mind from day one but it works perfectly fine on computers. When ready, you can save your songs and export them to wav files. We’d love to hear the songs that you come up with!

About

Grid Music Midi Player

Features
Read full description

Grid Music Midi Player is an instrument playing app for mobile devices. This app allows users to pick an instrument from a list, and play the instrument on 64 pads grid layout. The app also allows users to select Scale, Key Notes, Sharps (#) and an option to display the Note pressed on the device screen. Grid Midi Controller is a midi controller that triggers or toggles midi controls that you map with your DAW. This controller has been tested with Ableton Live, and is useful for controller midi mapped triggers on your DAW. You can save a controller, set default controllers, and even import and export previously saved controllers. In the edit mode, you can increase rows and columns of the midi control pads, change column colours, and set pad to toggle/trigger. The save feature is available only when you are in edit mode. Scale Finder is an app to find scales with the toggled keys. Features: Grid Music Midi Player * Play Piano as the default instrument * Play from a list of 36+ instruments (internet required) * Select Scale to play * Select between Major / Minor Key Patterns * Toggle Sharp for the Scale * Toggle display for Note being played * Connect to laptop with DAW and play any DAW instrument * LongPress the Speaker icon to stop sound playback * Toggle midi or SoundFont playback with Speaker icon Midi Controler: * Create multiple controllers * Toggle/Trigger midi controls * Export/Import/Edit saved Controllers * LongPress to set controller to Default in the Saved Controller List * LongPress Default to set the default controller to factory default * Change columns colours by clicking on column button in Edit Mode * Add/Remove Rows and Columns in Edit mode * Set a pad to Toggle/Trigger by pressing on the pad and the on the toggle/trigger in edit mode Scale Finder: * Press more than 1 key to list all the scales with that key * Toggle keys on or off New Features (Added 2025) * Midi Controller App * Save, delete sliding options on Instrument Loading Screen * Set to Default option by Long Pressing in Instrument List or Controller List * LongPress Speaker icon to stop audio playback * Toggle speaker icon for midi and soundfont playback New Features (added 2024) * Connect the player to your DAW (tested with Ableton) * Play Midi Notes on your DAW * Turn on/off Player volume for DAW playback * Separate Grid (4x4 ) for Drum Playback. * Changeable 2x and 4x Drum Playback. * How to use: Click on the Devices icon on the App bar and connect your DAW. Then start playing while you're connected to your DAW. * Ableton Setup Tutorial: https://help.ableton.com/hc/en-us/articles/209071169-Setting-up-a-virtual-MIDI-network Update: * By default, the ads will not be clickable. You'll have to click on the "INFO" icon on the top right to enable ads. Long Press the Icon to enable the Advertisements. * The Key note pads can be enabled/disabled by the Key Icon on the info panel that displays the Key of the note being played.

Screenshots

Polybeep4 screens
Grid Music Midi Player4 screens

Verdict

The call

The clearest difference is price: Grid Music Midi Player at Free against Polybeep's $4.99. Polybeep's advantage is in-app purchases (none vs 1) and update cadence (fortnightly vs every 2 months). On 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

Grid Music Midi Player is free to download; Polybeep costs $4.99 up front. Grid Music Midi Player sells 1 one-off in-app purchase. Polybeep asks for nothing beyond the download.

UpkeepUpdate frequency

Polybeep ships an update fortnightly, Grid Music Midi Player every 2 months. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Polybeep versus Grid Music Midi Player: the parameters behind the verdict, then further details
ParameterPolybeepGrid Music Midi Player
Price$4.99Free — better
Rating4.7 (3 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings3 — better—
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better26.0
Further details — not scored
Size101 MB51 MB
Age rating4+4+
DeveloperLeonardo DemartinoMohit Khanna

In-app purchases

None

Polybeep

No in-app purchases

1 purchases

Grid Music Midi Player

One-time1
  • Remove Ads$0.99

Questions

Is Polybeep free?
Polybeep costs $4.99, with no in-app purchases.
Is Grid Music Midi Player free?
Grid Music Midi Player is free to download, with in-app purchases available.
Do Polybeep or Grid Music Midi Player have ads?
Neither Polybeep nor Grid Music Midi Player shows ads.
Which is updated more often, Polybeep or Grid Music Midi Player?
Polybeep ships an update fortnightly, and Grid Music Midi Player every 2 months. Most recently, Polybeep was updated on October 24, 2026 and Grid Music Midi Player on October 24, 2026.

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