KQ Sampei 4+

Sampler Synthesizer

Ryouta Kira

    • 4.9 • 7 Ratings
    • $5.99



A sampler synthesizer which sound sets can be changed. It is multi-timbral.
Available Sound Set Formats: Sound Font(sf2), Compressed Sound Font(sf3), Downloadable Sound(DLS)

Supports a part of common MIDI messages (GM, GS, XG, MPE).
Includes a MIDI File Player. It supports Standard MIDI Files and RIFF MIDI Files. It also supports multiple ports and loops.

You can customize sound sets with "Modifiers".
In default, a modifier which adds soft pedal function, and GS Custom Controller mod are being applied. You can select "Original" and disable GS Custom Controller if you want.
Supports Audio Unit v3 and Inter-App Audio. You can use this synth as a plugin for another app such as GarageBand, AUM, Cubasis, etc...

Supports Micro-tuning. Place AnaMark TUN files into Tuning folder.

You can use sound sets as long as the device memory allows.
The actual memory limit seems to be around the half of the hardware RAM.
You may be able to load sounds over the memory size if you turn on "Load On Demand".

You can play this app with external MIDI devices and Virtual MIDI apps.

Includes a sound set, "GeneralUser GS" by S. Christian Collins. I prepared a modifier for this set.
This app developer does not collect any user information other than what is collected by iOS/iPadOS.

What’s New

Version 1.0.6

It was fixed that the app hanged up in MPE mode.
It was fixed that Number of Panels in AU wasn't applied on below iOS/iPadOS 15.
Other fixes.

Ratings and Reviews

4.9 out of 5
7 Ratings

7 Ratings

mark98201 ,

Easy synthesizer with great MIDI control

This is the kind of easily setup synthesizer for iPad that I’ve been searching for over the past several years. Implementation of general MIDI instruments is great. Best feature is the transposition control over individual instruments, and the transposition range.

Mad@Appstore ,

Van Glorious!

This app is phenomenal. Very efficient way to get your “Kontakt” on in ipad land. Very stable launch version so far. Highly recommend this app if you love big sounds and exploring new ways to blend them. Bravo!

App Privacy

The developer, Ryouta Kira, 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 Not Collected

The developer does not collect any data from this app.

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


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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