Comparison

Midiflow Splitter (Audiobus) vs XPad

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

Head to head
About

Midiflow Splitter (Audiobus)

This MIDI effect app allows musicians to divide their external keyboard into multiple zones, assigning each zone to different synth apps. It offers powerful configuration options for split and layer setups, including octave transposition and controller assignment per synth.

Highlights
  • Create split and layer configurations
  • Assign key zones to synth apps
  • Transpose each synth app in octaves
  • Control active controllers per synth
  • Solo individual synth sounds
  • Supports multiple keyboards
Features
Currently charting
Read full description

If you play your synth apps with an external keyboard, Midiflow Splitter is an essential tool for you. This MIDI effect app for Audiobus 3 lets you create split and layer configurations in an easy but powerful way. Thanks to Audiobus State Saving, everything can be saved and recalled when your show is about to start. + Add any number of split points + Assign resulting key zones to synth apps + Transpose each synth app in octaves + Choose which controllers (sustain, pitch-bend, etc.) should be active for each synth app + Solo sounds + Supports multiple keyboards NOTE: This app requires Audiobus 3. Create at least two MIDI pipelines with your keyboard as input and different synth apps as output. Then insert this app into the effect ports. MANAGAGE SPLIT POINTS AND ASSIGN ZONES Midiflow Splitter shows all synth apps as rows above the input keyboard. For each synth, you can select in which zone it should be active. The zones of the keyboard are defined by split points. Move, add, or remove split points to adjust the zones. If you are using multiple keyboards, they will show up with independent split point selectors. OCTAVE SHIFT AND CONTROLLER ASSIGNMENT An octave shift can be applied to each synth in your configuration. This is useful if you have assigned a sound to a zone on the lower part of the keyboard, but still want to trigger high notes. Just shift the notes by a couple of octaves, and you're done. You can also activate or deactivate controllers like sustain or pitch-bend for each synth app individually. That way, your controllers only affect the sounds you really want to manipulate, and keep the others unchanged. SOLO After you have set up your split and layer configuration, you might need to tweak a synth's sound again. By activating "solo", all other synth apps will be deactivated so that you have the whole keyboard for this one sound. This is very handy if you have arranged the sound in a layer and quickly want to mute the other sounds for a moment.

About

XPad

This app provides professional pad sounds for keyboardists, aiming to replicate warm analog synth tones with advanced digital features. It offers intuitive glissando control, real-time sound morphing, and extensive MIDI compatibility for a dynamic playing experience.

Highlights
  • Modern pad sounds
  • Realistic glissando control
  • Tone Width morphing
  • Sensible sound controls
  • MIDI remote control
  • Extensive sound library search
Features
Read full description

XPad is a professional sound module app and Audio Unit v3 plugin with focus on modern pad sounds for iPad. Goal was to get the warm and vibrant sound of analogue synths onto the convenient platform of an iPad and combining those sounds with the benefits of state of the art digital features while still preserving that analogue tone and feeling. Glissando XPad introduces a new way that we were developing for our apps to achieve realistic large interval Glissando. You can glide a tone continuously e.g. from the lowest octave up to the highest octave and vice versa, in any desirable speed and without causing an artificial impression to the listener. We were also thinking about how to improve the usability aspects for playing Glissando in a much more intuitive & convenient way for a keyboard player, while still preserving the player's full control. Foremost this app allows you to mix Glissando with regular polyphonic notes (e.g. chords) simultaneously or switch between these playing styles quickly at any time without leaving your hands off the keyboard. For instance you might be playing and holding a chord with your right hand while playing a Glissando slide with your left hand and punching through the right hand's chord from an octave lower than the chord, up to some octave higher than the chord. Tone Width Replicating some analogue boutique pad synthesizers is nice, but what about having a huge stack of them? That's where "Tone Width" control comes into play. Especially the important pad sounds of this app allow you to morph the sound with the "Tone Width" knob in real-time steplessly between a very thin and clean sound up to a huge and fat tonal sound as if an army of pad synths was working under your finger tips. Sensible Control Controls for the individual sound aspects is good. But it should be in a sensible way. Nothing is hard wired here. Every sound of this app presents controls that make sense for the individual sound. All controls presented are always fine tuned to the individual elements of that sound. You can alter all controls remotely by MIDI e.g. with sliders at your keyboard. The most important controls for each sound are mapped to things that you are most likely using anyway at your keyboard. For instance all sounds use the Aftertouch information of your keyboard to bring more dynamic behaviour into the sound even while just holding some notes. And just grab your modulation wheel at your keyboard to bring in some more variance. Never Lost XPad offers up to 462 sounds, but don't worry, it never lets you down and always assists you finding just the sound you need in a glimpse. You can quickly search for sounds with any combination of several criteria like sound characteristics, articulations, controls and more. Connectivity Like all our apps, XPad is very easy to use and start with. Just connect your keyboard with your iPad and you are ready to go. And of course if needed, you can simply tweak the setup, e.g. use a Bluetooth MIDI wireless connection to your keyboard instead of a cabled one, restrict MIDI input to certain devices or apps, connect to other apps with Inter-App Audio or use the sounds of this app as Audio Unit v3 plugin directly in the DAW app of your choice. Recorder The app comes with a built-in MIDI recorder that allows you to quickly record your musical ideas. You can share them as audio files with other people or transfer them as MIDI files for further work e.g. on your Mac. Sound Sets XPad is divided into 14 optional sound sets of different sound categories and provide up to 462 sounds in total. Even though the app is focused on pad sounds, this is not all this app has to offer sound-wise. The "Atmo" pack for instance contains atmospheric sounds for generating very emotional sound bases and backgrounds e.g. for film and entertainment. The "Perc" sound set contains drums and percussive sounds. The "Silicon" sound set covers synthesizers also offside the pad field, and much more.

Screenshots

Midiflow Splitter (Audiobus)4 screens

Verdict

The call

The clearest difference is price: XPad at Free against Midiflow Splitter (Audiobus)'s $2.99. XPad also leads on rating (3.8 vs 3.4) and update cadence (every 4 weeks vs every 11 months). Midiflow Splitter (Audiobus)'s advantage is in-app purchases (none vs 10) and chart position (#188 vs unranked). On ratings volume and ads 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

XPad is free to download; Midiflow Splitter (Audiobus) costs $2.99 up front. XPad sells 10 one-off in-app purchases. Midiflow Splitter (Audiobus) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

XPad holds the better App Store score, 3.8 against 3.4. Both are backed by a comparable volume of ratings — 10 and 24 respectively. Written reviews point the same way: 31% of Midiflow Splitter (Audiobus)'s written reviews are positive against 50% of XPad's.

UpkeepUpdate frequency

Midiflow Splitter (Audiobus) ships an update every 11 months, XPad every 4 weeks. Both last shipped on November 2, 2026.

Scorecard9 real differences · 2 level
Midiflow Splitter (Audiobus) versus XPad: the parameters behind the verdict, then further details
ParameterMidiflow Splitter (Audiobus)XPad
Price$2.99Free — better
Rating3.4 (10 ratings)3.8 (24 ratings) — better
Positive reviews31.3% of reviews50.0% of reviews — better
Number of ratings1024 — better
Update frequencyEvery 11 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
Best chart rank#188 — better—
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS10.2 — better12.0
Further details — not scored
Size5 MB1.2 GB
Age rating4+4+
DeveloperJohannes DoerrChristian Schoenebeck d/b/a Crudebyte

Customer experience

Midiflow Splitter (Audiobus)

All ratings10 ratings
Positive60.0%
Neutral0.0%
Negative40.0%
Written reviews16 reviews
Positive31.3%
Neutral0.0%
Negative68.8%

XPad

All ratings23 ratings
Positive73.9%
Neutral4.3%
Negative21.7%
Written reviews12 reviews
Positive50.0%
Neutral16.7%
Negative33.3%

In-app purchases

None

Midiflow Splitter (Audiobus)

No in-app purchases

10 purchases

XPad

One-time10
  • Metal Sound Set$3.99
  • Bass Sound Set$3.99
  • Choir Sound Set$3.99
Show 7 more
  • Altro Sound Set$3.99
  • Percussive Sound Set$3.99
  • Vintage Sound Set$4.99
  • Atmo Sound Set$5.99
  • Space Sound Set$5.99
  • Nature Sound Set$5.99
  • Sequence Sound Set$5.99

Questions

Is Midiflow Splitter (Audiobus) free?
Midiflow Splitter (Audiobus) costs $2.99, with no in-app purchases.
Is XPad free?
XPad is free to download, with in-app purchases available.
Which has better reviews, Midiflow Splitter (Audiobus) or XPad?
XPad is rated higher. Midiflow Splitter (Audiobus) averages 3.4 out of 5 from 10 ratings, while XPad averages 3.8 from 24 ratings.
Do Midiflow Splitter (Audiobus) or XPad have ads?
Neither Midiflow Splitter (Audiobus) nor XPad shows ads.
Which is updated more often, Midiflow Splitter (Audiobus) or XPad?
Midiflow Splitter (Audiobus) ships an update every 11 months, and XPad every 4 weeks. Most recently, Midiflow Splitter (Audiobus) was updated on November 2, 2026 and XPad on November 2, 2026.

Other comparisons