# GRAB EM Field Synth vs Braindance

The clearest difference is update cadence: GRAB EM Field Synth at daily against Braindance's weekly. GRAB EM Field Synth also leads on review sentiment (100% vs 83%) and price ($3.99 vs $4.99). Braindance's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On ads, in-app purchases and monetization model there is nothing between them.

GRAB EM Field Synth costs $3.99 and Braindance $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GRAB EM Field Synth ships an update daily, Braindance weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | GRAB EM Field Synth | Braindance |
| --- | --- | --- |
| Price | **$3.99** | $4.99 |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/braindance-glitch-effects/id6786817928/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | **100.0% of reviews** | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Weekly |
| Monetization | Paid | Paid |
| Size | 2 MB | 53 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hiroya Tanaka](https://appshunter.io/developer/1887542375) | [fourtrack.fm LLC](https://appshunter.io/developer/1883350705) |

## What reviewers say

### GRAB EM Field Synth

[App page](https://appshunter.io/ios/app/grab-em-field-synth/id6773259322)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Braindance

[App page](https://appshunter.io/ios/app/braindance-glitch-effects/id6786817928)

This app allows real-time audio manipulation with buffer-glitch effects. Create complex rhythmic patterns, apply various audio transformations, and perform live with intuitive controls. It can be used as a standalone application or as an Audio Unit within other hosts.

**Highlights:** Real-time buffer-glitch audio manipulation, Step sequencer with Euclidean patterns, Multiple audio effects (bitcrush, flanger, delay, reverb), Master filter with various modes, Live performance controls (XY pad, macros), AUv3 and MIDI support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GRAB EM Field Synth free?

GRAB EM Field Synth costs $3.99, with no in-app purchases.

### Is Braindance free?

Braindance costs $4.99, with no in-app purchases.

### Do GRAB EM Field Synth or Braindance have ads?

Neither GRAB EM Field Synth nor Braindance shows ads.

### Which is updated more often, GRAB EM Field Synth or Braindance?

GRAB EM Field Synth ships an update daily, and Braindance weekly. Most recently, GRAB EM Field Synth was updated on October 31, 2026 and Braindance on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*