KQ Sampei 4+

Sampler Synthesizer

Ryouta Kira

    • 4.8 • 11 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.
Not that the limit of Audio Unit is much smaller.
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.

URL Scheme: kqsampei://

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 1.1.4

Fixed a crash bug.

Ratings and Reviews

4.8 out of 5
11 Ratings

11 Ratings

mark98270 ,

Great companion app to the MIDIREC app

The Ryouta Kira MIDI music apps are great. We use them on our iPhones, iPads, and iPad Pros. We would also love to be able to buy them for our Apple-silicon Macs.

The apps are highly recommended to music contacts and sound system integration clients. They have also enabled a variety of church music that was difficult to provide in the past with excessively complex music production software.

For KQ Sampei app, we would like full persistence in settings between app uses. Currently, when the app is shut down or running in the background, the user interface shows that all settings for pan, expression, chorus, and V.Delay have been reset.

Some day a merging of the music curation features of MIDIREC, and app keyboard that provides MIDI-Out from the app with the existing KQ Sampei would also be greatly appreciated.

Developer Response ,

Thanks for the five-star rating.
I don't have an Apple-silicon Mac, so support for Mac has not yet been determined.

And KQ Sampei can avoid from resetting.
Resetting occurs when starting playing MIDI files. Not when re-opening the app.
And your MIDI files might include some parameter changes and reset signals.
To keep your parameters, use filter function.

Open MIDI > Filter and turn off Rx Sampei Reset, GM1 System On, GM2 System On, GS Reset and XG System On. You may also want to turn off Rx Continuous Controller or NRPN (GS), Panpot, Expression, and so on.

Expression is not a persistent parameter. Use volume instead.

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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