RollBud Trance Gate & Roll FX vs FFT AUv3 Visualizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RollBud Trance Gate & Roll FX
This app provides creative audio effects for rhythmic sound shaping, including stutters, rolls, and trance gate styles. It features an expressive XY-pad with MIDI control and recording capabilities, and integrates seamlessly as an AUv3 FX plugin.
- Rhythmic sound shaping
- Stutter, roll, and slip effects
- Trance gate-style effects
- Expressive XY-pad control
- MIDI control and recording
- AUv3 FX plugin integration
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RollBud is a creative audio effect that lets you shape sound in fun and rhythmic ways. Whether you're going for stutters, rolls, reverse rolls, slips, or trance gate-style effects, RollBud makes it easy to explore new textures and grooves—right from your iPad or iPhone. Expressive XY-Pad with MIDI Control & Recording - Touch & Perform: Control beat divisions on the X-axis and envelope shaping on the Y-axis. - MIDI Controllable: Trigger effects and highlight beats with external MIDI controllers. - Record & Playback: Capture your XY movements and play them back like an advanced LFO. - iCloud Integration: Save, manage, rename, or delete recordings from the settings menu. - MIDI Assignable: Map recordings to a MIDI note and channel for instant recall in live sets. Perfect for Any Genre From electronic, techno, house, and hip-hop to ambient, glitch, experimental, and cinematic, RollBud adds a unique rhythmic dimension to any production. AUv3 FX Plugin for Seamless Integration RollBud is a fully-featured AUv3 audio effect, compatible with top AUv3 hosts like AUM, Logic Pro, GarageBand, Cubasis, and Loopy Pro. More Features - Flexible FX Modes – Switch between Roll and Trance Gate modes for unique playback styles. - Customizable Envelope – Control rise/fall ratio, curve shape, and intensity for dynamic shaping. - Latch Mode – Hold XY positions for continuous effect application. - Quantized & Free Play – Perform with precision or experiment freely. Transform your sound and elevate your performance with RollBud!
FFT AUv3 Visualizer
This real-time spectral analyzer visualizes audio into spectrograms with high precision. It offers advanced features like mel-scale mapping and intelligent color coding to help musicians and audio engineers analyze sound frequencies for mixing, mastering, and sound design.
- Real-time spectral analysis
- High-resolution 4096-sample FFT
- Mel-scale frequency mapping
- 90dB dynamic range with intelligent color mapping
- Resizable interface
- 60Hz display with 75% overlap
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FFT is a real-time spectral analyzer designed specifically for musicians, producers, and audio engineers who demand precision in their frequency domain analysis. This plugin transforms your audio into visual spectrogram, featuring a high-resolution 4096-sample FFT engine that captures every nuance of your sound. With its advanced Blackman-Harris windowing and mel-scale frequency mapping, FFT provides perceptually accurate frequency representation that mirrors how your ears actually hear music. The plugin offers 90dB dynamic range with intelligent color mapping that highlights different frequency bands—from deep blues for sub-bass through vibrant greens for midrange to warm reds for sparkling highs. Whether you're mixing, mastering, sound designing, or analyzing acoustic spaces, FFT's real-time 60Hz display with 75% overlap ensures smooth, responsive visualization that helps you make critical EQ decisions, identify problematic frequencies, monitor stereo imaging, and understand the spectral content of your tracks with scientific precision. The resizable interface adapts to your workflow, making it an indispensable tool for any serious audio professional seeking to visualize and understand their sound in the frequency domain.
Screenshots
Verdict
The clearest difference is price: FFT AUv3 Visualizer at $0.99 against RollBud Trance Gate & Roll FX's $5.99. RollBud Trance Gate & Roll FX's advantage is update cadence (every 2 months vs every 8 months) and iOS requirement (12.0 vs 15.0). On rating, ratings volume, ads and in-app purchases 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
RollBud Trance Gate & Roll FX costs $5.99 and FFT AUv3 Visualizer $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for RollBud Trance Gate & Roll FX against 5.0 for FFT AUv3 Visualizer. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
RollBud Trance Gate & Roll FX ships an update every 2 months, FFT AUv3 Visualizer every 8 months. The most recent releases landed on September 16, 2026 and September 20, 2026 respectively.
| Parameter | RollBud Trance Gate & Roll FX | FFT AUv3 Visualizer |
|---|---|---|
| Price | $5.99 | $0.99 — better |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 15 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Cem Olcay | DiscoDSP LLC |
Customer experience
RollBud Trance Gate & Roll FX
FFT AUv3 Visualizer
In-app purchases
RollBud Trance Gate & Roll FX
No in-app purchases
FFT AUv3 Visualizer
No in-app purchases





