Comparison

BK Partner vs KeyStage Lite

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

Head to head
About

BK Partner

Control your Roland BK-series instrument's sounds and accompaniments from your iPad. It mirrors the instrument's front panel for quick access to functions, tones, and rhythms. Supports Core MIDI and Roland Wireless Connection.

Highlights
  • Browse and select instrument tones
  • Control musical accompaniments
  • Duplicate instrument's front control panel on iPad
  • Fast visual access to main functions
  • Support for Core MIDI
  • Support for Roland Wireless Connection
Read full description

This software application for iPad let you browse, select, and control the sounds ("Tones") and musical accompaniments ("Rhythms") of your Roland BK-series instrument. When using BK Partner you can: - Play your BK-series instrument while using your iPad as a duplication of its front control panel. This provides fast visual access to the BK's main functions, Tones, and Rhythms. Work with Core MIDI or Roland Wireless Connection (if supported by BK Instrument) *Note: The BK Partner can only display English texts.

About

KeyStage Lite

This app acts as a master controller and audio mixer for keyboard players. It allows simultaneous control of multiple hardware and software instruments using various MIDI controllers. Organize songs into sections, customize instrument sounds, and manage MIDI mappings with advanced scripting capabilities.

Highlights
  • Control multiple MIDI controllers and instruments
  • Host AUv3 instruments and effects
  • Create complex keyboard splits and layers
  • Advanced MIDI mapping and scripting
  • Audio mixer with track control
  • Play and manage audio files
  • View PDF and JPG files
Read full description

KeyStage is a master controller, AUv3 host, and audio mixer app designed mainly for keyboard players. With KeyStage, you can simultaneously control any number of hardware and software instruments using any number of MIDI controllers in an organized way. Each project consists of sections (which corresponds to sections of a song). In each section you can change sounds and sound parameters of connected instruments, create complex splits and layers of your keyboard(s), change the functionalities of sliders/knobs/pedals of your MIDI controllers by creating advanced MIDI mappings, write your own scripts, view PDF and JPG files (e.g. sheet music) and lyrics, and much more. LIST OF FEATURES • Connect any number of MIDI controller to any number of MIDI instruments by creating tracks. • Load AUv3 instruments, effects, and MIDI Processors. • Assign any region of your keyboard(s) to any connected instrument. • Change velocity curve and velocity limits, and create velocity splits and layers. • Transpose notes and restrict notes to any key using pitch shifter. • Create mixer units to combine audio signals, turning KeyStage into an audio mixer. • With the player units, you can play wav, mp3, and m4a files, add marker points, automate actions (like play, stop, move to a marker etc.) using custom translators, or trigger certain events (like changing sections) when the player reaches a certain marker. • Input units allows you to use the microphone input, or the hardware inputs of a connected audio interface. • The Main Mixer view allows you to control volume levels and pans of all tracks, connect effect units, and connect units to mixer units. • Create instrument presets to easily change sounds of instruments by choosing patch names from patch lists. • KeyStage can also import Cubase Patch Scripts to automatically create instrument presets for your MIDI instruments. • KeyStage automatically detects new MIDI connections and recommends matching instrument presets from a database. • Simulate auto-sustain on any connected instrument. • KeyStage has a multi-track recorder, which lets you record any number of tracks simultaneously. • Change or filter any MIDI signal using custom translators. Use “Relative Control” switch to smoothly change the parameters of your instruments without any jumps. • Use XY control unit to send control change and pitch bend messages to any connected MIDI instrument. • Create setlists, quick access all the songs in a setlist from a setlist bar, move to previous/next songs from live console or using external MIDI. • Create virtual MIDI inputs/outputs for KeyStage. • Use virtual MIDI piano controller to play connected instruments. • View PDF and JPG files. Link any page or region of any file to any section. • Backup and restore your songs and global properties to Dropbox. • Map special actions (like changing octaves, switching sections, changing pages of a PDF file) to notes and controllers using custom translators. • You can write your own scripts in custom translators, which opens up endless possibilities. • Use MPE routing to control any MIDI instrument using MPE controllers like Seaboard. Use custom translators to change the functionalities of each MPE dimension. • KeyStage supports smooth transitions between sections. Pressed notes will continue to sound when you switch sections. You can access demo videos and video tutorials on my Youtube channel.

Verdict

The call

The clearest difference is update cadence: KeyStage Lite at every 3 months against BK Partner's every 12 months. BK Partner's advantage is iOS requirement (8.1 vs 13.0). On price, rating, review sentiment and ratings volume 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.0 for BK Partner against 4.0 for KeyStage Lite. Both are backed by a comparable volume of ratings — 6 and 7 respectively. Written reviews split almost evenly too, at 61% and 60% positive.

UpkeepUpdate frequency

BK Partner ships an update every 12 months, KeyStage Lite every 3 months. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
BK Partner versus KeyStage Lite: the parameters behind the verdict, then further details
ParameterBK PartnerKeyStage Lite
PriceFreeFree
Rating4.0 (6 ratings)4.0 (7 ratings)
Positive reviews60.9% of reviews — better60.0% of reviews
Number of ratings67 — better
Update frequencyEvery 12 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPad
Requires iOS8.1 — better13.0
Further details — not scored
Size28 MB61 MB
Age rating4+4+
DeveloperRoland CorporationAli Gokturk

Customer experience

BK Partner

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews23 reviews
Positive60.9%
Neutral13.0%
Negative26.1%

KeyStage Lite

All ratings7 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

None

BK Partner

No in-app purchases

None

KeyStage Lite

No in-app purchases

Questions

Is BK Partner free?
BK Partner is free to download, with no in-app purchases.
Is KeyStage Lite free?
KeyStage Lite is free to download, with no in-app purchases.
Which has better reviews, BK Partner or KeyStage Lite?
BK Partner and KeyStage Lite are both rated 4.0 out of 5 on the App Store, from 6 and 7 ratings respectively.
Do BK Partner or KeyStage Lite have ads?
Neither BK Partner nor KeyStage Lite shows ads.
Which is updated more often, BK Partner or KeyStage Lite?
BK Partner ships an update every 12 months, and KeyStage Lite every 3 months. Most recently, BK Partner was updated on October 16, 2026 and KeyStage Lite on October 7, 2026.

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