GRAB EM Field Synth vs AFTERTASTE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
AFTERTASTE
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音を指で押しつぶして壊すアプリです。 画面の四角(CHEW)を指で押さえている間だけ、鳴っている音がぐちゃぐちゃに壊れます。離せば元の音に戻ります。それだけのアプリです。 まずはMENUのDEMOをタップしてビートを鳴らし、CHEWを押さえてみてください。指を動かすと壊れ方が変わります。 ・下にフリック → テープが止まるみたいに減速して止まる ・左右にフリック → 逆再生・順再生が切り替わる ・2本指でつまむ → 刻む長さが変わる ・押さえたまま傾ける → 音が腐ったり焦げたりする ・スマホを振る → 一瞬暴走する ・ひっくり返す → 逆再生になる 音源は4つから選べます。 ・DEMO:内蔵のビート ・FILE:スマホに入っている曲 ・MIC:マイクの音をそのまま ・SMPL:今鳴っている音を録音してループにする(録音中もCHEWで壊せます) 壊した音はそのままWAVで保存して、他のアプリに送れます。 広告なし、課金なしの無料アプリです。
Screenshots
Verdict
The clearest difference is price: AFTERTASTE at Free against GRAB EM Field Synth's $3.99. On ads, in-app purchases, device support and iOS requirement 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
AFTERTASTE is free to download; GRAB EM Field Synth costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | GRAB EM Field Synth | AFTERTASTE |
|---|---|---|
| Price | $3.99 | Free — better |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Daily | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroya Tanaka | SHOTA KOZAKI |
In-app purchases
GRAB EM Field Synth
No in-app purchases
AFTERTASTE
No in-app purchases
Questions
Is GRAB EM Field Synth free?
Is AFTERTASTE free?
Do GRAB EM Field Synth or AFTERTASTE have ads?
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