Comparison

Midiflow vs Cavit Scale Ultimate

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

Head to head
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
Currently charting
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.

About

Cavit Scale Ultimate

This app provides real-time Arabic scale management for MIDI keyboards, offering features like pitch bending, octave control, and a ribbon controller. It supports a wide range of popular keyboard models and wireless MIDI adapters for enhanced musical expression.

Highlights
  • Real-time Arabic scale management
  • Pitch bending +/- with Aftertouch
  • Ribbon Controller
  • Transpose and Octave Switch
  • 7 Banks for User-Scales
  • Wide keyboard compatibility
Read full description

Cavit Scale is an app for managing Arabic Scaler, Transpose and Octave Switch, Pitchbending +/- with Aftertouch, Ribbon Controller on your SWAM Audiomodeling for iOS, MacOS, Windows NI KONTAKT for HR SOUNDS Juzisound Total SOLO Sampler 2 KORG KRONOS (User Octave Scale 00 or User Octave Scale 01) KORG NAUTILUS (User Octave Scale 00 or User Octave Scale 01) KORG Pa5x KORG Pa4x KORG Pa3x KORG Pa4X ORIENTAL KORG Pa4X OR MG EDITION KORG Pa500 KORG Pa800 KORG Pa600 KORG Pa600 QT KORG Pa900 KORG Pa1000 KORG M3 KORG Pa1x KORG Pa2x KORG TRITON EXTREME KORG TRITON CLASSIC KORG TRITON STUDIO KORG TRITON LE KORG TRITON TR KORG TRITON Trinity KORG micro X KORG X50 KORG KAMA YAMAHA Montage-M YAMAHA MONTAGE YAMAHA MODX YAMAHA 5000 YAMAHA PSR-Series YAMAHA Tyros-Series YAMAHA GENOS ROLAND FANTOM 6 ROLAND FANTOM 7 ROLAND FANTOM 8 ROLAND FANTOM-G ROLAND FANTOM ROLAND GS Roland AX-Edge, Roland AX-Synth, Ketron AUDYA, Ketron SD 1, Ketron SD5, Ketron VEGA Pitch Bend GM-Mode Medeli (all Keyboards with Midi In/Out or USB Midi) Real-Time Arabic Scale for all Midi Keybord It has also a Ribbon Controller. Feature-List: - Pitch Emotion, to give more expression to your Style - Assigning Pitch Bender + y / -y new dimention of play performance - Default Note Scale Up/Down value - 7 Banks to save User-Scales - On/Off switch on Scale-Banks - Transpose Function button - Octave Function button (Kronos) - Ribbon Controller - Interfaces compatibility Yamaha - MD-BT01 Wireless Midi Adapter, Quicco Sound mi.1 Wireless Midi Adapter, Apple Lightning to USB Camera Adapter (iPhone/iPad), Apple Lightning to USB 3 Camera Adapter (iPad) The application to be used in conjunction with compatible interfaces. Design Advisory: Nermin Artanlar

Screenshots

Midiflow4 screens
Cavit Scale Ultimate4 screens

Verdict

The call

The clearest difference is price: Midiflow at $7.99 against Cavit Scale Ultimate's $149.99. Midiflow also leads on rating (4.0 vs 3.7) and ratings volume (39 vs 3). Cavit Scale Ultimate's advantage is in-app purchases (none vs 3) and review sentiment (71% vs 59%). On update cadence, 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

Midiflow costs $7.99 and Cavit Scale Ultimate $149.99 up front. Midiflow sells 3 one-off in-app purchases. Cavit Scale Ultimate asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Midiflow holds the better App Store score, 4.0 against 3.7. That said, the two scores are not equally well evidenced: Midiflow has 39 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 59% of Midiflow's written reviews are positive against 71% of Cavit Scale Ultimate's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Midiflow ships an update every 5 weeks, Cavit Scale Ultimate every 3 weeks. The most recent releases landed on September 26, 2026 and September 20, 2026 respectively.

Scorecard8 real differences · 3 level
Midiflow versus Cavit Scale Ultimate: the parameters behind the verdict, then further details
ParameterMidiflowCavit Scale Ultimate
Price$7.99 — better$149.99
Rating4.0 (39 ratings) — better3.7 (3 ratings)
Positive reviews58.8% of reviews71.4% of reviews — better
Number of ratings39 — better3
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#117 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better18.6
Further details — not scored
Size4 MB11 MB
Age rating4+4+
DeveloperJohannes DoerrCavit Artanlar

Customer experience

Midiflow

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

Cavit Scale Ultimate

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews7 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

Bugs and 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

Cavit Scale Ultimate

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Midiflow

One-time3
  • Send Controller On Load$1.99
  • Controller Conditions$2.99
  • Controller Remapping$3.99
None

Cavit Scale Ultimate

No in-app purchases

Questions

Is Midiflow free?
Midiflow costs $7.99, and also offers in-app purchases.
Is Cavit Scale Ultimate free?
Cavit Scale Ultimate costs $149.99, with no in-app purchases.
Which has better reviews, Midiflow or Cavit Scale Ultimate?
Midiflow is rated higher. Midiflow averages 4.0 out of 5 from 39 ratings, while Cavit Scale Ultimate averages 3.7 from 3 ratings.
Do Midiflow or Cavit Scale Ultimate have ads?
Neither Midiflow nor Cavit Scale Ultimate shows ads.
Which is updated more often, Midiflow or Cavit Scale Ultimate?
Midiflow ships an update every 5 weeks, and Cavit Scale Ultimate every 3 weeks. Most recently, Midiflow was updated on September 26, 2026 and Cavit Scale Ultimate on September 20, 2026.

Other comparisons