Comparison

KLANG vs GM Sampler

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

Head to head
About

KLANG

This app is a versatile sampler designed for both professional and casual use. It allows users to freely control and play back a wide variety of sound effects and background music, making it useful for work events, school activities, and personal entertainment.

Highlights
  • 16 pads for simultaneous playback
  • 142 built-in sound effects
  • Import music and sound effects from iTunes
  • Loop function for seamless looping
  • Two playback modes: simultaneous and cut-in
  • Independent volume control for each pad
  • Save and recall custom settings
Features
Read full description

<アプリ紹介> 簡単で使いやすさを追求した多機能サンプラーアプリ。 豊富な効果音142種類とお好きなBGMを自由自在に操作・再生できる、“仕事に役立つ”“遊びに使える”プロ使用のサンプラーアプリです。 《どんな時に使えるの?》   仕 事テレビ、ラジオ、舞台、イベント会場、結婚式場、プレゼンテーションなど   学校行事 運動会、学芸会、式典、レクリエーションなど   遊 び  誕生日、クリスマス、ホームパーティー、宴会など 《主な機能》 操作は簡単、一般の方でも手軽に使用できます   ・パットの数が16個、最大16音の同時再生が可能です  ・アプリには、すでに数多くの効果音が用意されています  ・アプリ内だけでなく、iTunesからもお好きな音楽、効果音の取り込みが可能です  ・Loop素材に最適なLoop機能があります  ・playモードは2種類 [同時再生モード]  BGMを再生しながら効果音、ナレーションなどの同時再生ができます    [シングル再生モード]  再生したい効果音、BGMをカットイン再生できます  ・ボリュームは、全体の音量を調整するマスターフェーダーと16のパットそれぞれ独立した音量調整が付いてます   (同時再生モード時、BGM・効果音・ナレーションなど個々の音量調整に便利です)  ・セーブ機能あり    1度セットした音量、ループのON・OFF、音の配列は名前をつけてセーブすれば何度でも呼び出し可能です    (複数のセッティングが保存可能です) 効果音の数 なんと142種類 《効果音の一例》     ・Drum kit    ・リズムLoop    ・クイズ効果音     出題音、シンキング音、タイムオーバー音、正解音、不正解音、ファンファーレ、罰ゲーム音・・・など    ・使える効果音     お知らせのチャイム、カウントダウン、ゴング、シンバル、爆発音、ピストル、アラーム、 エマージェンシーコール、○ピンポン、×ブー、ホイッスル、ドラ、歓声、のど自慢の鐘・・・など    ・和風     つづみ、尺八、拍子木、合いの手(ヨーキン!、ヨーポン!)・・・など

About

GM Sampler

This app is a professional audio sampler and timer designed for live event operation, including tabletop RPG sessions and theater. It allows users to trigger music and sound effects, organize audio by scene, and manage timing cues from a mobile interface.

Highlights
  • 16-pad soundboard with 100 pages
  • Flexible playback modes (polyphony, monophonic, crossfade)
  • Detailed pad customization (name, color, loop, gain)
  • Fast audio import from cloud services
  • Fullscreen timer (stopwatch/countdown)
  • Backup and sharing of setups
  • Bluetooth speaker keepalive
Features
Read full description

GMApp is a professional audio sampler and timer for game masters, tabletop RPG sessions, murder mystery events, theater, rehearsals, streaming, and live event operation. It helps you trigger music and sound effects at the right moment, organize large sound sets by scene, and run sessions from a clean mobile interface. Designed for live use Run background music, one-shot effects, ambience, scene transitions, and timing cues from one iPhone or iPad. GMApp is built for hosts and operators who need quick, confident control during a performance or session. Who it is for - Murder mystery and story game hosts - Tabletop RPG GMs and keepers - Theater, rehearsal, reading, and small-stage sound operators - Streamers and event hosts who need reliable BGM and SFX playback - Creators managing many audio files across multiple scenes Core features 16-pad soundboard with up to 100 pages Each page provides a 4 x 4 pad layout. Create up to 100 pages, for a total of 1,600 pads, and organize sound cues by scenario, chapter, act, location, battle, or scene. Flexible playback modes Choose the right behavior for each pad or session: - Polyphony: layer ambience, BGM, and sound effects together. - Monophonic: switch cleanly between single sound sources. - Crossfade: transition naturally between music tracks, with adjustable fade time. Tap behavior can also be set to retrigger from the beginning or toggle pause/resume. Detailed pad customization Customize each pad with a display name, color, loop setting, and gain level. Color-coded pads and clear names make it easier to operate under pressure during a live session. Fast audio import Import local audio files from the iOS share sheet, Google Drive, Dropbox, or ZIP archives. This makes it easy to prepare a full show, session, or scenario audio set in advance. Bluetooth speaker keepalive option For long quiet scenes, optional wireless speaker keepalive playback can help reduce the chance of Bluetooth or AirPlay speakers sleeping between cues. Fullscreen timer for sessions and events Use stopwatch or countdown mode, from short scene timers to long event blocks. Fullscreen mode makes the timer easy for everyone at the table or in the room to see. Backup and sharing Export and import page-level ZIP packages and full backups. Move setups between devices, preserve a production-ready sound board, or share cue structures with another operator. Audio formats AAC, AIF, AIFF, CAF, FLAC, M4A, MP3, OGG, and WAV are supported. Compatibility may vary by device and OS. GMApp is made for creators who want the story, scene, or performance to flow without fighting the sound board. Legal notice: https://gmapp.souko.work/tokusho

Screenshots

KLANG4 screens
GM Sampler4 screens

Verdict

The call

The clearest difference is in-app purchases: GM Sampler at none against KLANG's 10. GM Sampler also leads on update cadence (every 3 weeks vs every 5 months) and review sentiment (50% vs 30%). KLANG's advantage is iOS requirement (10.0 vs 14.0). On ads and device support 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

KLANG costs $4.99 and GM Sampler $1.99 up front. KLANG sells 10 one-off in-app purchases. GM Sampler asks for nothing beyond the download.

UpkeepUpdate frequency

KLANG ships an update every 5 months, GM Sampler every 3 weeks. Both last shipped on September 23, 2026.

Scorecard6 real differences · 4 level
KLANG versus GM Sampler: the parameters behind the verdict, then further details
ParameterKLANGGM Sampler
Price$4.99$1.99 — better
Rating1.0 (1 ratings) — better—
Positive reviews30.4% of reviews50.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better14.0
Further details — not scored
Size95 MB99 MB
Age rating4+4+
DeveloperM-TANK,INCtakashi masuda

Customer experience

KLANG

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews46 reviews
Positive30.4%
Neutral13.0%
Negative56.5%

GM Sampler

Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

10 purchases

KLANG

One-time10
  • Loop2$0.99
  • ショック$1.99
  • ホラー$1.99
Show 7 more
  • 音楽室$2.99
  • コメディー$3.99
  • ファンファーレ$3.99
  • 効果音2$3.99
  • 効果音3$3.99
  • 効果音4$3.99
  • 和2$3.99
None

GM Sampler

No in-app purchases

Questions

Is KLANG free?
KLANG costs $4.99, and also offers in-app purchases.
Is GM Sampler free?
GM Sampler costs $1.99, with no in-app purchases.
Do KLANG or GM Sampler have ads?
Neither KLANG nor GM Sampler shows ads.
Which is updated more often, KLANG or GM Sampler?
KLANG ships an update every 5 months, and GM Sampler every 3 weeks. Most recently, KLANG was updated on September 23, 2026 and GM Sampler on September 23, 2026.

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