Comparison

SynthMaster Player vs Midiflow Splitter (Audiobus)

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

Head to head
About

SynthMaster Player

This mobile synthesizer app provides a vast library of sounds for music production. It allows users to play presets, make limited edits, and access additional sound banks through in-app purchases. It integrates with other music apps and offers a built-in keyboard for immediate playability.

Highlights
  • Preset-based sound library
  • Limited parameter editing
  • XY pads for modulation
  • AUv3 and InterApp Audio support
  • Audiobus integration
  • Built-in keyboard with pitch/mod wheels
  • Scales functionality
Read full description

SynthMaster Player for iOS received "2016 Editor's Choice Award" from Electronic Musician Magazine! SynthMaster desktop version is voted as "The Best VST/AU Synth Plugin" by MusicRadar readers and also received "Gear of the Year" award from MusicTech Magazine for "Best Software Instrument" category. SynthMaster has received very positive reviews from acclaimed music technology magazines: "SynthMaster: The most powerful softsynth you may not have heard of" Keyboard Magazine "If ever there was a desert island synth, SynthMaster is it, covering all sonic bases with authority and a superb tone" Computer Music Magazine "Many developers say that they've produced the one and only synth you'll ever need, but we've always felt that was a dubious claim. In SynthMaster’s case, though, it’s one that rings true" MusicRadar INTRODUCTION SynthMaster Player for iOS is the MOBILE PLAYER VERSION of the award winning SynthMaster software synthesizer. It is targeted towards users who prefer to use presets rather than designing their own sounds during music production. Although it is a preset based player, users can edit the following preset parameters: 1) 8 easy parameters assigned by the sound designer 2) 2 XY Pads assigned by the sound designer 3) Effect bypass states and send amounts 4) Layer bypass states and volumes 5) Master volume, polyphony The free app comes with 100 factory presets. When users complete registration by entering their names and email addresses they receive another 100 factory presets as a bonus! After completing registration, users can upgrade to the Pro version of the app by purchasing the "Factory Presets" bank via In-App-Purchase (IAP). With the Pro Upgrade all of the 800 factory presets are loaded and also the following features are unlocked: 1. Users can save the changes they have made to the presets. 2. Users can purchase additional preset banks via In-App-Purchase (IAP). We currently have 28 additional preset banks that contain 1750 presets for various genres/styles. 3. Existing SynthMaster users can download their previously purchased SynthMaster preset banks inside the app, so that they don't have to purchase them again. 4. Existing SynthMaster users can export their own presets in SynthMaster v2.x and import them into SynthMaster Player for iPad using iTunes. AUv3 SynthMaster Player for iOS supports AUv3, you can add multiple instrument instances to your tracks. INTERAPP AUDIO SynthMaster Player for iOS acts as an source/instrument in InterApp Audio. We demonstrate in our user manual how to connect it to InterApp enabled DAW apps. AUDIOBUS SynthMaster Player for iOS acts as a source/instrument in AudioBus, with state saving enabled. We demonstrate in our user manual how to connect it to AudioBus enabled DAW apps. BUILT-IN KEYBOARD The built-in 2 octave keyboard with pitch and modulation wheels lets users play notes without having to connect an external MIDI controller to their iPad. With its Scale functionality, it shows the users the notes on the scale, and with its Chord functionality the user can play a certain chord by pressing a single note. MIDI SETTINGS SynthMaster Player for iOS supports CoreMIDI and also virtual MIDI. It acts as a virtual MIDI destination for other DAW apps. Midi input device, midi input channel, and receive midi beat clock settings can be adjusted from the MIDI Settings window. SYSTEM REQUIREMENTS Minimum Operating System Supported: iOS 9 Minimum Hardware Supported: iPad4, iPhone 5 and above Recommended Hardware: iPad Air and above, iPhone6 and above

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
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.

Screenshots

SynthMaster Player3 screens
Midiflow Splitter (Audiobus)4 screens

Verdict

The call

The clearest difference is price: SynthMaster Player at Free against Midiflow Splitter (Audiobus)'s $2.99. SynthMaster Player also leads on rating (4.4 vs 3.4) and review sentiment (52% vs 31%). Midiflow Splitter (Audiobus)'s advantage is in-app purchases (none vs 13). On ads, device support 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

SynthMaster Player is free to download; Midiflow Splitter (Audiobus) costs $2.99 up front. SynthMaster Player sells 13 one-off in-app purchases. Midiflow Splitter (Audiobus) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SynthMaster Player holds the better App Store score, 4.4 against 3.4. That said, the two scores are not equally well evidenced: SynthMaster Player has 55 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 52% of SynthMaster Player's written reviews are positive against 31% of Midiflow Splitter (Audiobus)'s.

UpkeepUpdate frequency

SynthMaster Player ships an update every 3 months, Midiflow Splitter (Audiobus) every 11 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

Scorecard7 real differences · 3 level
SynthMaster Player versus Midiflow Splitter (Audiobus): the parameters behind the verdict, then further details
ParameterSynthMaster PlayerMidiflow Splitter (Audiobus)
PriceFree — better$2.99
Rating4.4 (55 ratings) — better3.4 (10 ratings)
Positive reviews52.1% of reviews — better31.3% of reviews
Number of ratings55 — better10
Update frequencyEvery 3 months — betterEvery 11 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.010.2 — better
Further details — not scored
Size308 MB5 MB
Age rating4+4+
DeveloperKV331 AudioJohannes Doerr

Customer experience

SynthMaster Player

All ratings55 ratings
Positive85.5%
Neutral5.5%
Negative9.1%
Written reviews261 reviews
Positive52.1%
Neutral16.1%
Negative31.8%

Midiflow Splitter (Audiobus)

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

Bugs and requests

SynthMaster Player

Reported bugs

5 issues
  • Crashes on startup
  • Purchased presets not loading
  • Stuck notes
  • Incompatibility with newer iOS versions
  • Audiobus and IAA issues

Requested features

6 requests
  • Ability to edit and create own sounds
  • Improved preset management
  • Better integration with DAWs and Audiobus
  • Background playback support
  • Larger on-screen keyboard
Show 1 more
  • More customization options

Midiflow Splitter (Audiobus)

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

SynthMaster Player

One-time13
  • Historical Synth Giants Vol 1$1.99
  • BigTone Signature Sounds Vol1$4.99
  • MK Expansion 2$4.99
Show 10 more
  • Nori Ubukata Art Rock Basics$4.99
  • Sounds of the World$4.99
  • Factory Presets (PRO Upgrade)$4.99
  • SynthMaster 2.7 presets$4.99
  • SynthMaster 2.8 Presets$4.99
  • Extra Factory Presets Bundle$9.99
  • SynthMaster EDM Bundle 1$13.99
  • Dawn Of Electronic Bundle$13.99
  • Synth Giants Bundle$13.99
  • Rob Lee EDM Bundle$19.99
None

Midiflow Splitter (Audiobus)

No in-app purchases

Questions

Is SynthMaster Player free?
SynthMaster Player is free to download, with in-app purchases available.
Is Midiflow Splitter (Audiobus) free?
Midiflow Splitter (Audiobus) costs $2.99, with no in-app purchases.
Which has better reviews, SynthMaster Player or Midiflow Splitter (Audiobus)?
SynthMaster Player is rated higher. SynthMaster Player averages 4.4 out of 5 from 55 ratings, while Midiflow Splitter (Audiobus) averages 3.4 from 10 ratings.
Do SynthMaster Player or Midiflow Splitter (Audiobus) have ads?
Neither SynthMaster Player nor Midiflow Splitter (Audiobus) shows ads.
Which is updated more often, SynthMaster Player or Midiflow Splitter (Audiobus)?
SynthMaster Player ships an update every 3 months, and Midiflow Splitter (Audiobus) every 11 months. Most recently, SynthMaster Player was updated on October 24, 2026 and Midiflow Splitter (Audiobus) on October 21, 2026.

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