RollBud Trance Gate & Roll FX vs VAPolyMT
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!
VAPolyMT
This powerful synthesizer app offers bi-timbral polyphony with analog-style sequencers and assignable macro controls. It functions as a standalone application or an AudioUnit Extension, supporting MIDI, Ableton Link, and audio export. Project files are savable via iCloud Drive for cross-platform access.
- Bi-timbral polyphonic synthesizer
- Analog-style step sequencer per timbre
- Assignable macro controls
- AudioUnit Extension (AUv3) support
- Ableton Link and MIDI support
- iCloud Drive project sharing
- Built-in effects and piano roll editor
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VAPolyMT is a bi-timbral polyphonic synthesizer for iPhone, iPad and Mac. It features analog style step sequencer per timbre and assignable macro controls. It operates as a stand alone or as an AudioUnit Extension (AUv3). Stand Alone supports Ableton Link, MIDI and audio file export. Each synthesizer consists of two oscillators, mixer, resonant low pass filter, resonant hight pass filter and amplifier. The synthesizers can be layered or can be split. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. VAPolyMT also includes sequencer which features piano roll editor and parameter automation. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. Main Features Bi-timbral polyphonic subtractive synthesizer. Analog Style Step Sequencer per timbre. Eight Assignable Controllers. Maximum 8 voice polyphony. it depends on performance of the device it is running. Built-in effects and piano roll sequencer. Support Audio Unit Extension (AUv3). Support MIDI 2.0. Support Foot Pedal and Per Note Control. Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) Support Ableton Link, Bluetooth MIDI, MIDI In / Out. Include more than 200 Factory Presets. Improvements Support MIDI Foot Pedal (CC#11, CC#64) Support MIDI2.0 Per Note Control Messages MIDI CC Settings are saved. It will be recovered when the app launched in the next time. System Requirements iOS 17.0 or later macOS 14.0 or later Devices with Apple Silicon are recommended. A13 Fusion or above is highly recommended. if sound is distorted when using a device with less CPU power, reduce number of voices. AudioUnit Extension (AUv3) requires host application which support AudioUnit Extension. AudioUnit Extension is supported by Apple Logic and Apple Garage Band on iOS and macOS. For any other DAW, it depends on the application and some of them don’t support AudioUnit Extension.
Screenshots
Verdict
The clearest difference is price: RollBud Trance Gate & Roll FX at $5.99 against VAPolyMT's $14.99. RollBud Trance Gate & Roll FX also leads on update cadence (every 2 months vs every 11 months) and iOS requirement (12.0 vs 16.6). 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 VAPolyMT $14.99 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 VAPolyMT. Both are backed by a comparable volume of ratings — 2 and 4 respectively.
RollBud Trance Gate & Roll FX ships an update every 2 months, VAPolyMT every 11 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | RollBud Trance Gate & Roll FX | VAPolyMT |
|---|---|---|
| Price | $5.99 — better | $14.99 |
| Rating | 5.0 (2 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 2 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 15 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Cem Olcay | Ryo Togawa |
Customer experience
RollBud Trance Gate & Roll FX
VAPolyMT
In-app purchases
RollBud Trance Gate & Roll FX
No in-app purchases
VAPolyMT
No in-app purchases
Questions
Is RollBud Trance Gate & Roll FX free?
Is VAPolyMT free?
Which has better reviews, RollBud Trance Gate & Roll FX or VAPolyMT?
Do RollBud Trance Gate & Roll FX or VAPolyMT have ads?
Which is updated more often, RollBud Trance Gate & Roll FX or VAPolyMT?
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