EvilTwin vs VAPolyMod
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EvilTwin
This audio effect plugin adds width, motion, and unique character to your sound. It offers creative stereo enhancement and dynamic spatial animation, suitable for subtle polish or dramatic transformations. Designed for musicians and sound designers, it encourages sonic exploration with a focused interface.
- Creative stereo enhancement and widening
- Dynamic movement and spatial animation
- Subtle-to-extreme sound shaping
- Performance-focused interface
- AUv3 support for iPad and Mac
- Works with popular music hosts
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Evil Twin is a creative stereo processing effect designed to add width, motion, depth, and unexpected character to your sound. Built for musicians, producers, sound designers, and experimental artists, Evil Twin combines stereo enhancement with controlled instability, allowing you to move from subtle spatial polish to dramatic transformations with a simple and focused interface. Whether you're widening a synth, adding movement to a pad, creating animated textures, or pushing sounds into unfamiliar territory, Evil Twin encourages exploration while remaining fast and musical to use. Features: • Creative stereo enhancement and widening • Dynamic movement and spatial animation • Subtle-to-extreme sound shaping possibilities • Simple, performance-focused interface • AUv3 support for iPad and Mac • Works in compatible hosts including GarageBand, Logic Pro, AUM, Cubasis, and Audiobus Evil Twin is designed for creators who enjoy discovering new sounds rather than following predictable presets. Sometimes the best results happen when things drift a little off course. Basic usage guide at folinaaudio.com.
VAPolyMod
This app is a polyphonic synthesizer with a modular architecture offering multiple audio routing configurations. It includes a step sequencer, built-in effects, and supports various MIDI and audio export options. Projects can be shared across devices via iCloud.
- Modular architecture with 4 audio routing configurations
- Dual VCOs, VCFs, and VCAs
- 6 envelope generators and 5 LFOs
- Built-in effects (delay, chorus, reverb, etc.)
- 3-channel analog style step sequencer
- Audio Unit Extension (AUv3) support
- Ableton Link and MIDI 2.0 support
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VAPolyMod features a preconfigured modular architecture that offers four audio routing configurations of voice modules, consisting of dual VCOs, dual VCFs, and dual VCAs, ranging from stereo channels to layered channels. It also contains 6 envelope generators and five LFOs. VAPolyMod operates as a stand alone or as an AudioUnit Extension (AUv3) for iPhone, iPad and Mac. Stand Alone supports Ableton Link, MIDI and audio file export. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. Main Features - Polyphonic Synthesizer. - a preconfigured modular architecture that offers four audio routing configurations - Low pass Filter is modeled on cascaded OTA -24dB per octave low pass filter circuit. - 3 channel analog style step sequencer. - Maximum 8 voice polyphony. it depends on performance of the device it is running. - Built-in effects and piano roll sequencer. - Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) - Support Audio Unit Extension (AUv3). - Support MIDI 2.0. - Support Ableton Link, Bluetooth MIDI, MIDI In / Out. - Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. - Support MIDI Foot Pedal (CC#11, CC#64) - MIDI CC Settings are saved. It will be recovered when the app launched in the next time. - UI Color can be selected from black, navy, gray, blown and red. - Font size for title of controls are adjustable. - Factory Preset 128 - Effects Preset 40 System Requirements - iOS 17.0 or later - Devices with Apple Silicon are recommended. A13 Fusion or above is highly recommended. - 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. - Sound may be distorted if CPU of the device doesn't have enough power. If it happens reduce number of voices.
Screenshots
Verdict
The clearest difference is price: EvilTwin at $2.99 against VAPolyMod's $14.99. EvilTwin also leads on 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
EvilTwin costs $2.99 and VAPolyMod $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 EvilTwin against 5.0 for VAPolyMod. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
| Parameter | EvilTwin | VAPolyMod |
|---|---|---|
| Price | $2.99 — better | $14.99 |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 17 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeremy Phillips | Ryo Togawa |
Customer experience
EvilTwin
VAPolyMod
In-app purchases
EvilTwin
No in-app purchases
VAPolyMod
No in-app purchases






