# KQ Sampei Legacy — Sampler Synthesizer

> Multi-timbral sampler synthesizer with customizable sound sets and MIDI support. (iPhone/iPad app by Ryouta Kira.)

- Source: https://appshunter.io/ios/app/kq-sampei-legacy/id1626784865 (this page in markdown: same URL + `.md`)
- Developer: [Ryouta Kira](https://appshunter.io/developer/862984358)
- Category: Music
- Price: $11.99
- Rating: 4.90/5 from 19 App Store ratings · 17 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.4 · 15 MB
- Languages: Japanese, American English
- Released: 2023-03-14
- Data updated: 2026-08-23
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/kq-sampei-legacy/id1626784865/reviews.md

## What is KQ Sampei Legacy?

### THIS IS A DEPRECATED PRODUCT. Get KQ Sampei 26 instead. ###
If you bought this app recently, you can request a refund.

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.

Supports external storages. DO NOT USE ON-DEMAND LOADING WITH SLOW STORAGES SUCH AS HDD, USB STICKS, SD CARDS.

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...
To maximize compatibility with other SoundFont players such as FluidSynth, select the engine V3, turn off "Custom GS Controllers", "Slow LPF", "Smooth Volume Level".

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" (Streaming load).
In the developer's environment, 4.2 GB of SoundFont could be loaded on an iPhone with 1 GB of memory.

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

URL Scheme: kqsampei://

Includes a sound set, "GeneralUser GS v1.471" by S. Christian Collins. I prepared modifiers for this set.
This app developer does not collect any user information other than what is collected by iOS/iPadOS.

This app and the description contain machine translated text.

## Key features

- Customizable sound sets (Sound Font, DLS)
- Multi-timbral synthesis
- MIDI message support (GM, GS, XG, MPE)
- MIDI File Player
- Audio Unit v3 and Inter-App Audio plugin support
- Micro-tuning support
- External MIDI device compatibility

## Recent user reviews (10 of 17)

All indexed reviews: https://appshunter.io/ios/app/kq-sampei-legacy/id1626784865/reviews.md

### 1/5 — Marre

*2026-03-05*

KQ Sampei est très récent pourquoi ressortir une nouvelle version si ce n’est pour nous faire encore payer ! On est pas des pigeons ! Faites au moins une mise à jour moins chère !!!

**Developer response:** Si votre ancien logiciel fonctionne correctement, il n'est pas nécessaire d'acheter la nouvelle version. L'achat de la version groupée vous permet de mettre à niveau à moindre coût. Nous avons créé une nouvelle application autonome afin de verrouiller les binaires de l'ancienne application, d'assurer la compatibilité avec les nouveaux systèmes d'exploitation et d'abandonner certaines des anciennes fonctionnalités. Cette décision a été difficile à prendre.

Traduit avec DeepL.com (version gratuite)

### 5/5 — おすすめです

*2026-01-25*

iOS/macOSには他にもMIDIプレーヤーアプリが多数ありますが、このKQさんのSampeiが一番機能が充実してます。
XG対応のsf2ファイル(SGMなど)をインポートして、昔ヤマハのショップで買った古いSMFを鳴らしていますMidRadioPlayerが終了しましたが、Sampeiで代用できそうです。
（トラックのソロボタンが見当たりませんが、ぜひ実装をお願いします🙏 →追記: ミュートアイコンを長押しでソロに切り替えられました）

まだmacOSネイティブアプリではない模様ですが、MacのLogicでAUとして立ち上げて問題なく使えています。

### 5/5 — Thanks for the $2.00 update

*2025-10-03*

If you own the original KQ Sampei (now KQ Sampei Legacy) make sure to go to the bundle to upgrade for $2.00 rather than spending another $9.99 for KQ Sampei 26.

### 5/5 — ⭐️

*2025-05-17*

ボイスオーバーサウンドフォント読み込み何故か不可

### 5/5 — Klasse!

*2025-02-26*

Viele, sehr gute Sounds (Instrumente) enthalten.
Und das bei dieser unglaublich kleinen App größer?
Wirklich unglaublich…

### 5/5 — スマートフォンでmidiが聴けるなんて……

*2024-04-28*

感動です。midiプレイヤーとしての使用(iPad&iPhone)のみですが、美しいサウンドフォント、鍵盤表示や見やすく分かりやすい設定等、言う事なしです。ありがとうございます！

### 5/5 — 建议连接电钢琴使用

*2023-11-05*

很好的sf2加载器

### 5/5 — Awesome

*2023-09-09*

Awesome yet very simple… love it

### 5/5 — Need a record button and zoom in and zoom out

*2023-08-07*

This app is amazing it has 128 keys and it can handle black midi’s! It is very cool.But the problem is It should have a record button and zoom in and out for the keys please add those features It will be very nice but this app it is worth buying it.

### 5/5 — Very good

*2023-03-29*

Best SoundFont Player i found so far

## Frequently asked questions about KQ Sampei Legacy

### What sound set formats does KQ Sampei Legacy support?

KQ Sampei Legacy supports Sound Font (.sf2), Compressed Sound Font (.sf3), and Downloadable Sound (.DLS) formats for its sound sets. This allows for a wide range of sonic possibilities.

### Can KQ Sampei Legacy be used with other music apps?

Yes, KQ Sampei Legacy supports Audio Unit v3 and Inter-App Audio, enabling it to function as a plugin within other applications like GarageBand, AUM, and Cubasis.

### Does KQ Sampei Legacy have a MIDI file player?

Yes, it includes a MIDI File Player that supports Standard MIDI Files and RIFF MIDI Files, with options for multiple ports and loops.

### What is the memory limit for loading sound sets in KQ Sampei Legacy?

The actual memory limit for sound sets appears to be around half of the device's hardware RAM. However, with 'Load On Demand' enabled, it may be possible to load sounds exceeding the physical memory size.

### Does KQ Sampei Legacy support external MIDI devices?

Yes, KQ Sampei Legacy can be played using external MIDI devices and virtual MIDI apps, offering flexibility for live performance and studio use.

### How often is KQ Sampei Legacy updated?

The latest version, 1.6.8, was last updated on October 2, 2025. While this indicates recent activity, users should note the product is deprecated and KQ Sampei 26 is recommended.

### What is the price of KQ Sampei Legacy?

KQ Sampei Legacy is a paid application priced at $9.99. Users who purchased it recently can request a refund due to its deprecated status.

### Is KQ Sampei Legacy suitable for beginners?

While KQ Sampei Legacy offers advanced features like multi-timbral synthesis and extensive MIDI support, its complexity might be more suited for experienced musicians. Beginners might find KQ Sampei 26 a more accessible option.

## Version history (last 5 releases)

### 1.6.8 — 2025-10-02

This product became deprecated and has been renamed.

### 1.6.7 — 2025-06-15

Optimized processing.
Note that the new developer tool's optimization option changes, so the CPU load might change (increase or decrease).

### 1.6.6 — 2025-04-03

Some appearance fix.

### 1.6.5 — 2025-03-31

Fixed an issue that prevented Audio Unit validation on Mac.
Other fixes.

### 1.6.4 — 2025-03-20

Fixed Drum NRPN behavior.
Other fixes.

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## More apps by Ryouta Kira

- [KQ MiniSynth Legacy](https://appshunter.io/ios/app/kq-minisynth-legacy/id1070850573)
- [KQ Dixie Legacy](https://appshunter.io/ios/app/kq-dixie-legacy/id1330269027)
- [MIDI Recorder with E.Piano](https://appshunter.io/ios/app/midi-recorder-with-epiano/id1448577506)
- [KQ Unotone Legacy](https://appshunter.io/ios/app/kq-unotone-legacy/id1478535391)
- [Piano Modoki](https://appshunter.io/ios/app/piano-modoki/id1509387368)

All apps by Ryouta Kira: https://appshunter.io/developer/862984358

## Related topics

[synth sequencer](https://appshunter.io/ios/topics/synth-sequencer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*