Scordio vs GRAB EM Field Synth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scordio
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Scordioは、ギターにおいてオープンチューニングやドロップチューニングに代表されるさまざまな変則チューニングを実験し、記録・管理するのに適したアプリです。開放弦の音(チューニング)を変えると指板上の音も同期的に変わるのはもちろん、指板上の音を変えた場合もそれに応じて同じ弦の開放音が同期的に変わります。 各ポジションの音はタップすると再生・試聴でき、ギターが手元になくてもさまざまなチューニングの響きを試せます(各ポジションごとの他、開放弦6本すべてをまとめて鳴らすことも可能です)。他のアプリで再生していた音を止めずに鳴らせるため、任意の音源や映像を再生しながら相性の良いチューニングを模索するのにも良いでしょう。 実音だけでなくナチュラルハーモニクスの音も切り替えて表示できるので、例えばあるフレーズをハーモニクス音だけで演奏したい場合に5フレット・7フレットといったナチュラルハーモニクスが鳴る特定のポジションごとの音程設定から演奏可能なチューニングをすばやく見つけられます。 楽器演奏や作編曲と密接に設計されたアプリは、往々にして独自的な操作体系を備えており、身体の延長として馴染んで扱えるようになるまで一定の学習・時間を要します。ScordioはiOS標準の操作体系への準拠を意識した設計によって、iPhoneにはじめからインストールされている標準的なアプリに近い操作で扱えるため、すぐにチューニングの実験や管理に取り組むことができます。 iCloud同期のほか、チューニングをテキストファイルとして書き出し、読み込みできます。これまで使っていた様々な楽曲のチューニングを、テキストファイルの形式にしてScordioに読み込んで閲覧・管理できます。
GRAB EM Field Synth
This experimental synthesizer uses your iPhone's magnetic sensor to capture ambient electromagnetic waves and transform them into sound. Explore unique soundscapes by "playing" the electromagnetic noise from everyday electronics like power adapters and Wi-Fi routers.
- Electromagnetic wave to sound conversion
- Multi-layered sound engine
- Sensor-linked synth voices
- Camera-driven tremolo effect
- Bitcrush, comb filter, reverb, stutter effects
- Ableton Link tempo synchronization
- 3D point cloud frequency spectrum visualization
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GRAB uses the magnetometer in your iPhone as an antenna. It receives the electromagnetic noise around you and turns it into sound in real time. Power adapters, motors, displays, Wi-Fi routers — the invisible field they radiate becomes the source material, and you play it the way you would play a field recording. Move to a different room and the instrument sounds different. SOUND ENGINE • Five ETHER-inspired layers: mains hum / PWM buzz / static hiss / high squeal / pulse train • Three sensor-driven synth voices: saw / square / noise • With the camera on, light falling on the lens drives a tremolo across level and timbre EFFECTS • CRUSH — bit crusher with sample-rate reduction • COMB — comb filter with feedback • REVERB — multi-tap reverb with shimmer • STUTTER — BPM-synced gate • MUTE — momentary kill switch; tap it repeatedly to articulate a tremolo by hand • HOLD latch on every effect pad, from the button or a second finger ABLETON LINK • Automatic tempo sync with Live, Logic and other iOS music apps • STUTTER locks to the Link tempo at 1/4, 1/8, 1/16 and 1/32 • Uses Ableton's official Link settings panel • Plays alongside other audio apps rather than interrupting them VISUALS • 3D point-cloud frequency spectrum • Spectrum bar mode • With the camera on, a grayscale image sits behind the field in depth WAYS TO PLAY • A field-sound tool: walk it past appliances and hear the timbre shift • An atmospheric noise source to drop into a live set • A platform for experimenting with electromagnetic noise music PRIVACY All audio is processed on the device. Nothing is recorded and nothing is sent anywhere. Ableton Link communicates only within your local Wi-Fi network.
Screenshots
Verdict
The clearest difference is price: Scordio at Free against GRAB EM Field Synth's $3.99. GRAB EM Field Synth's advantage is in-app purchases (none vs 3) and iOS requirement (17.0 vs 26.1). On update cadence, 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
Scordio is free to download; GRAB EM Field Synth costs $3.99 up front. Scordio sells 3 one-off in-app purchases. GRAB EM Field Synth asks for nothing beyond the download.
Scordio ships an update every 2 days, GRAB EM Field Synth daily. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.
| Parameter | Scordio | GRAB EM Field Synth |
|---|---|---|
| Price | Free — better | $3.99 |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 2 days | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.1 | 17.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Shota Ito | Hiroya Tanaka |
In-app purchases
Scordio
- Guitar Picks$2.99
- Guitar Strings$4.99
- Dog Toys$11.99
GRAB EM Field Synth
No in-app purchases
Questions
Is Scordio free?
Is GRAB EM Field Synth free?
Do Scordio or GRAB EM Field Synth have ads?
Which is updated more often, Scordio or GRAB EM Field Synth?
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