Comparison

Piano Partner vs Midiflow

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

Head to head
About

Piano Partner

Enhance your Roland digital piano experience with interactive learning tools. This app offers a fun music game to build skills, a browser to access onboard sounds and songs, and a digital sheet music display for built-in pieces.

Highlights
  • Interactive music game for skill building
  • Access onboard sounds and songs
  • Digital sheet music display
  • Wireless connectivity with adapter
  • Content browsing by category
Read full description

Experience the luxury of a digital piano with your iPad. Piano Partner is iPad app that provides a fresh, interactive way to learn and play a piano with your Roland digital piano. (Some models may require a system update.) * Piano Partner supports Roland’s LX-15e/15, HP508/507/506/505/504/503, DP90Se/90e/90S/90, RP401R, F-130R, FP-80/50 and F-20. * DigiScore Lite is only compatible with the LX-15e/15, HP508/507/506/504, DP90Se/90e, RP401R and F-130R. Piano Partner contains three applications: Flash Card, Content Browser, and DigiScore Lite. • Flash Card is an interactive music game that builds your listening and reading skills in a fun. • Contents Browser lets you quickly access hundreds of onboard sounds and songs of the connected Roland piano by category names on the iPad’s display. • DigiScore Lite displays digital sheet music of the built-in songs on the iPad screen. * Content Browser and DigiScore Lite are only available for the built-in songs. You can’t use your original piano recordings nor other SMF files. * By inserting the Roland’s WNA1100-RL Wireless USB Adapter (sold separately) into the USB MEMORY port of your Roland piano, you can use Piano Partner applications on your iPad wirelessly. * In order for the iPad to communicate with compatible Roland pianos using the WNA1100-RL, a wireless LAN access point with an Internet connection is required. * Make sure your instrument is updated with the most current System Program. Some models may require a system update. Latest system program and setup instructions can be found at www.roland.com.

About

Midiflow

This app enables seamless MIDI data transfer between different applications on your device. It allows for app synchronization, routing MIDI from sequencers to synths, and assigning keyboard zones. Users can save and recall configurations, and monitor MIDI activity.

Highlights
  • App-to-app MIDI routing
  • MIDI clock synchronization
  • Channel filtering and remapping
  • Note and velocity manipulation
  • Custom virtual MIDI ports
  • Preset saving and recall
  • Controller filtering and remapping (in-app purchase)
Features
Read full description

Midiflow allows you to send MIDI from app to app in a similar way to what you already do with audio. That way, you can sync apps with each other or send MIDI parts from a sequencer app to different synth apps. You can also route the MIDI from your keyboard to apps and assign different key zones to them. Different settings can be stored as a preset, recalled later and inserted into another preset. Furthermore, all MIDI transfer can be monitored in order to find problems or just to learn what MIDI is doing (normally) behind the scenes. Important news: There is a full documentation on the Midiflow website now! HOW DOES IT WORK? Midiflow allows you to create multiple routings. Each routing receives MIDI data on its source and sends it to its destination. The selectable sources and destinations include your CoreMIDI compatible MIDI interface and other apps if they provide a virtual MIDI port. You can also create custom ports that can be used by other apps to receive data from Midiflow or send data to it. A routing also has a modifier which allows you to filter data or modify it. That way, you can transpose notes, limit them to a key range, change the MIDI channel of the incoming data, etc. (see the feature list below). LIST OF FEATURES + MIDI clock – specify tempo and your apps will be in sync + Channel filtering and remapping + Velocity filtering – a routing is only active for notes in a given velocity range + Note shift – shift all notes by a given number of half-tone steps + Note remapping – shift each note individually + Velocity remapping – apply a velocity curve, transform to fixed velocity, or specify the map value by value. In the latter case, you can also export the mapping to the clipboard, edit it in another app like Apple Numbers, and paste it back in Midiflow + Filtering out Clock or dividing the tempo into subdivisions + Filtering out SysEx + Connect to other iPads/iPhones via Bluetooth MIDI (iOS8 or higher) + Save a configuration as a preset, which can be recalled later or inserted into another preset + Custom virtual MIDI ports, which can be selected in other apps as a source or destination + Control aspects of Midiflow via MIDI. For example, select presets or control the clock with any MIDI command + Launch your synth apps from Midiflow (works with an increasing number of apps) + Sharing your configurations ADDITIONAL FEATURES (available as an In-app purchase) + Filtering and remapping of controllers – transform (a) the controller type, e.g. from CC1 to pitch-bend or note value to CC1, and (b) transform the value in several ways: as a linear remapping from an input range to an output range, as a curve, or as a value by value list. In the latter case, you can also export the mapping to the clipboard, edit it in another app like Apple Numbers, and paste it back in Midiflow. This allows you to create very sophisticated remappings. + Controller conditions – adjust your routings depending on other MIDI messages. This allows you to create sophisticated behavior within your setup by switching routings on and off. DOES MIDIFLOW WORK WITH MY SYNTH APPS? Midiflow works with every app that has a correct MIDI implementation. In the best case, it has an own virtual MIDI port and can be configured so that it receives MIDI only on that port. Unfortunately, some apps don't have that, but can at least be restricted to one MIDI channel. In that case, you can send to that channel on the global MIDI port "Network Session 1". If you can't select a channel either, then the app won't work with Midiflow. There is a tutorial video on www.midiflow.com that explains this in more detail.

Screenshots

Midiflow4 screens

Verdict

The call

The clearest difference is review sentiment: Midiflow at 59% against Piano Partner's 9%. Midiflow also leads on rating (4.0 vs 1.7) and update cadence (every 5 weeks vs every 26 months). Piano Partner's advantage is price (Free vs $7.99) and in-app purchases (none vs 3). On ads and iOS requirement 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

Piano Partner is free to download; Midiflow costs $7.99 up front. Midiflow sells 3 one-off in-app purchases. Piano Partner asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Midiflow holds the better App Store score, 4.0 against 1.7. That said, the two scores are not equally well evidenced: Midiflow has 39 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 9% of Piano Partner's written reviews are positive against 59% of Midiflow's.

UpkeepUpdate frequency

Piano Partner ships an update every 26 months, Midiflow every 5 weeks. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

Scorecard8 real differences · 2 level
Piano Partner versus Midiflow: the parameters behind the verdict, then further details
ParameterPiano PartnerMidiflow
PriceFree — better$7.99
Rating1.7 (7 ratings)4.0 (39 ratings) — better
Positive reviews9.3% of reviews58.8% of reviews — better
Number of ratings739 — better
Update frequencyEvery 26 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS9.3.59.0 — better
Further details — not scored
Size8 MB4 MB
Age rating4+4+
DeveloperRoland CorporationJohannes Doerr

Customer experience

Piano Partner

All ratings7 ratings
Positive14.3%
Neutral0.0%
Negative85.7%
Written reviews54 reviews
Positive9.3%
Neutral14.8%
Negative75.9%

Midiflow

All ratings39 ratings
Positive69.2%
Neutral2.6%
Negative28.2%
Written reviews119 reviews
Positive58.8%
Neutral5.0%
Negative36.1%

Bugs and requests

Piano Partner

Not enough reviews yet to summarise bugs or requests.

Midiflow

Reported bugs

45 issues
  • Frequent crashes while editing CC map
  • Mapped CCs dropped during performance
  • App does not open on iOS 10
  • Layout issues on iPhone 11 (no 'Done' button)
  • App stops working, opens for 2 seconds then closes
Show 40 more
  • Bug in Velocity remapping: 'Reset curve' makes screen blank
  • Note Off messages have vel value = 0
  • App simply doesn't start after paid updates
  • No 'Done' or 'Back' button visible in menus
  • App crashes when editing a song and saving
  • Edits lost after crash
  • Backup song lost after crash
  • App crashes when trying to remap
  • App crashes on first note when Roli Seaboard is connected
  • App closes when searching for nearby devices
  • App closes when selecting 'find nearby devices' or 'advertise device'
  • App doesn't work with iOS 14
  • App doesn't work with iOS 15
  • App doesn't work with iOS 16
  • App crashes on iPad 5 after update
  • App closes immediately after starting
  • No back or cancel button, stuck in menus
  • CC control mapping issues (e.g., CC7 dropped)
  • Bluetooth connectivity crashes the app
  • Program Change to MIDI note remapping not working
  • App doesn't search for nearby devices
  • App force closes when remapping
  • GUI problems with returning to main page
  • App crashes on first note
  • App doesn't load after paid updates
  • No return button
  • Layout issues on iPhone
  • Filter out Note Off messages functionality missing
  • Frequent crashes while editing
  • Mapped CCs dropped during performance
  • Note off velocities are ignored
  • App doesn't open
  • App closes immediately
  • App doesn't work with SampleTank in background
  • Remapping doesn't work properly
  • MIDI messages blocked or morphed
  • Remapping adds code instead of replacing
  • Fixed MIDI channels in Korg iPolysix
  • Does not work with Arturia iMini/iProphet
  • App shutdown on iPad 2

Requested features

6 requests
  • AUv3 plugin version
  • Mass sharing of songs
  • Dark mode
  • Ability to map multiple notes from one key press
  • Individual transpose for split zones
Show 1 more
  • More MIDI features controllable by external hardware

In-app purchases

None

Piano Partner

No in-app purchases

3 purchases

Midiflow

One-time3
  • Send Controller On Load$1.99
  • Controller Conditions$2.99
  • Controller Remapping$3.99

Questions

Is Piano Partner free?
Piano Partner is free to download, with no in-app purchases.
Is Midiflow free?
Midiflow costs $7.99, and also offers in-app purchases.
Which has better reviews, Piano Partner or Midiflow?
Midiflow is rated higher. Piano Partner averages 1.7 out of 5 from 7 ratings, while Midiflow averages 4.0 from 39 ratings.
Do Piano Partner or Midiflow have ads?
Neither Piano Partner nor Midiflow shows ads.
Which is updated more often, Piano Partner or Midiflow?
Piano Partner ships an update every 26 months, and Midiflow every 5 weeks. Most recently, Piano Partner was updated on October 13, 2026 and Midiflow on October 12, 2026.

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