SynthMaster Player 4+

Synth Instrument App

KV331 Audio

    • 4.3 • 45 Ratings
    • Free
    • Offers In-App Purchases



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


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.

SynthMaster Player for iOS supports AUv3, you can add multiple instrument instances to your tracks.

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.

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.

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.

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.


Minimum Operating System Supported: iOS 9
Minimum Hardware Supported: iPad4, iPhone 5 and above
Recommended Hardware: iPad Air and above, iPhone6 and above

What’s New

Version 1.1.27

fixed the crash that occurs on devices prior to iOS15

Ratings and Reviews

4.3 out of 5
45 Ratings

45 Ratings

Hamer1952 ,

Great Sounding Synth.

Differently one of the best in the App Store. The only problem I’m having and it’s pretty annoying and this happens quite often. I’ll be playing the on screen keyboard then all the sudden depending on the preset sound the note will constantly stay on in the hold position meaning it will continue to sound and the only way to turn it off is tap the hold button and then turn it off. This definitely needs to be fixed.

RocknMe ,

Fantastic Sounds!!

I’ve had this app for a while now and bought several additional sound packs. The sounds that are made to sound just like those in songs we are all familiar with are amazing! There are so many presets it can feel overwhelming but in a good way. I’m running an iPad Pro 2020 and it has no problems running this incredible app.

I have a question though. If I buy SynthMaster One will the presets I’ve already bought as add-ones work in it? I really don’t want to buy them a second time. Thanks for this incredibly useful music app... I really love it!

Kareembyear1year ,

Great but...buggy on latest iOS version

My previously purchased presets won’t download. There’s an error each time.

Edit: I found a work around. I kept exiting the app and purchasing the presets again (for free because the App Store has record of purchases). I had to keep exiting because after each purchase it asked me to download (instead of buy) my already purchased presets. Choosing the download option always had an error. For some reason it only downloaded when I pressed a buy button. Good thing it didn’t charge me though. I do love the app and presets.

It’s nice to control with iFretless as an MPE controller. It does get a little buggy at times when doing this though.

I haven’t contacted support though. I usually mess around long enough with things until I can get it to work.

Developer Response ,

Hello did you contact our tech support about this issue? Please contact us and we will fix it

App Privacy

The developer, KV331 Audio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

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Privacy practices may vary, for example, based on the features you use or your age. Learn More

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