Robot Butter vs GateReverb
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Robot Butter
This audio effect app creates dynamic soundscapes by blending animated modulation, adaptive reverb, and digital textures. It offers a fast, playable interface with direct control over key parameters and tempo-synced movement for evolving sound design.
- AUv3 audio effect for iPhone, iPad, and macOS
- Animated modulation engine
- Adaptive reverb stage
- Tempo-synced LFO matrix
- Digital texture effects
- Built-in user manual
- Factory and user presets
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Robot Butter is a creative AUv3 audio effect for compatible hosts on iOS & iPadOS. It blends animated modulation, adaptive reverb, tempo-aware movement, and digital texture into one fast, playable interface. At the core is the Robot engine, where Actuator, Viscosity, and Controller create the main motion and character of the signal. That signal then feeds Butter, an adaptive reverb stage designed to intelligently stay musical while responding to the effective movement of the Robot section. The result can move from focused width and pulse to washed ambience, strange motion, and unstable experimental color. The Chipset section extends the sound with a built-in assignable LFO matrix and a post-reverb System Bus reduction stage. Run the LFO freely in Hz or lock it to musical divisions for host-synced movement, then route it to key Robot or Butter controls for evolving motion. Add System Bus for subtle grain or push it harder for sharper, crushed digital edge. Robot Butter is designed to stay immediate. The interface gives you direct control over modulation, blend, depth, reverb shape, output mix, and motion timing without pushing you into a complicated modulation environment. A built-in user manual inside the standalone app includes overview pages, parameter explanations, quick-start guidance, glossary entries, MIDI notes, and troubleshooting help, with scrollable section pills that keep longer labels readable. Factory presets and user presets make it easy to jump from polished mix enhancement to stylized movement and aggressive sound design. Features: - Robot modulation engine with Actuator, Viscosity, Controller, and gain staging - Butter adaptive reverb with Churn, Emulsion, and Culture controls - Built-in LFO matrix with free or tempo-synced timing - Assignable LFO destinations across Robot and Butter parameters - System Bus sample-rate reduction stage for animated digital texture - Imaging modes including Mono, Wide, Ping, and Drift when stereo processing is available - Factory presets covering vocals, guitars, bass, keys, synths, drums, utility, and experimental categories - User preset save, recall, and delete support - Comprehensive built-in in-app user manual with quick-start, glossary, and troubleshooting sections - MIDI Learn, Host Learn support, and default CC mappings for hands-on control - Optional MIDI CC broadcast for compatible host-routing workflows - Host tempo sync with straight, dotted, and triplet divisions Use Robot Butter for vocal movement, guitar widening, synth pulse, drum bus animation, ambient wash design, or aggressive lo-fi modulation chains. It is built to move quickly from musical enhancement to animated destruction while keeping the workflow focused and playable.
GateReverb
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GateReverb is a focused, single-purpose reverb effect for vocals, drums, and mix busses: a Plate reverb whose tail is shaped by a gate, so the wet signal opens and closes with the dynamics of your source instead of trailing off in a long, smeared decay. Unlike a conventional reverb, GateReverb's gate listens to your input and controls only the reverb return — your dry signal always passes through untouched. The result is reverb that feels alive and rhythmic: tight and punchy when you want it tucked in, or big and dramatic when you want it to bloom and snap shut. WHY A GATED REVERB Traditional reverbs add space, but the tail can blur transients, muddy a mix, or fight for room with other instruments. By gating the reverb return, GateReverb lets you dial in exactly how much "air" survives after each hit or phrase — keeping your low end tight, your vocals intelligible, and your drums punchy, while still giving you all the depth and character of a smooth Plate reverb underneath. SIX CONTROLS, NO GUESSWORK GateReverb keeps the interface to six clearly labeled controls so you can dial in a sound fast, without hunting through menus: - Threshold — sets how loud the input must be before the gate opens - Attack — how quickly the reverb appears once the gate opens - Release — how quickly the reverb tail is cut off - High Damp — tames or brightens the top end of the reverb tail - Dry Level — your unprocessed input signal - Reverb Level — the gated wet signal Every control uses a musically tuned response curve, so small movements near the most useful range (short attacks, fast or slow releases, etc.) give you fine control exactly where you need it. 8 PRESETS FOR REAL-WORLD SOURCES GateReverb ships with eight presets designed around real mixing situations, each tuned with appropriate thresholds, timing, and tonal balance for its source material: - Vocal Air — a natural, breathing space that follows phrasing - Vocal Spotlight — a dramatic swell that blooms at the end of a line - Drum Snap — a short, punchy ambience that preserves transients - Drum Pump — an aggressive, rhythmic gated effect for electronic and pop production - Bus Glue — a subtle cohesive space for a full mix bus - Bus Bloom — an expansive lift for choruses and key moments - Subtle Texture — barely-there ambience for spoken word or delicate sources - Extreme Gate — a bold, obvious gated effect for sound design Each preset is a starting point — every control remains live, so you can reshape any preset to fit your track in seconds. BUILT FOR YOUR WORKFLOW GateReverb is built as a lightweight AUv3 Audio Unit plugin for use inside your favorite AUv3-compatible host on Mac and iOS — load it on a vocal, drum bus, or send, and it's ready to play with. All parameters are exposed to your host for full automation, so gate timing and reverb levels can be part of your arrangement, not just a static setting. A standalone version is also included so you can audition GateReverb on a sample audio file before committing it to a session — load a WAV, hit play, and hear exactly how each preset and control responds before you build it into your mix. GateReverb is designed to do one thing extremely well: give your reverb a shape, a rhythm, and a reason to be there. No oversized interface, no overwhelming parameter list — just the controls you need to get a great gated reverb sound, fast.
Screenshots
Verdict
The clearest difference is price: GateReverb at $0.99 against Robot Butter's $14.99. GateReverb also leads on iOS requirement (12.0 vs 17.0). On ads, in-app purchases 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
Robot Butter costs $14.99 and GateReverb $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Robot Butter | GateReverb |
|---|---|---|
| Price | $14.99 | $0.99 — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac, Vision Pro | iPhone, iPad, iPod, Mac |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Christian Thompson | Kenichi Nakamura |
In-app purchases
Robot Butter
No in-app purchases
GateReverb
No in-app purchases









