EvilTwin vs MORF
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.
MORF
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Your voice. A different character. MORF is an ivlt.io Gadget for exploring live voice and sound transformation on iPhone and iPad. Choose a sound, set your input level and shape the result with controls made for playing. SHAPE YOUR SOUND Adjust pitch and blend your original input with the transformed sound. Open the shaping controls for tone, body, drive, space, movement and formant. Map real-time controls to a MIDI controller with MIDI learn. CHOOSE YOUR TRADE-OFF Choose from the processing modes available for each model. Faster response and greater detail make different demands on your device. Estimated delay ranges help you decide; actual latency also depends on the model, device and audio connection. Not every model supports every mode. BUILD YOUR LIBRARY Preview optional sound packs before downloading. Browse Hugging Face for compatible community models, and import the models from files. Supported imports include RVC v2 pitch-conditioned models at 32, 40 and 48 kHz; arbitrary AI models are not compatible. Create personal sounds from recordings on your device. Organise your library with drag and drop, and remove downloaded models when you no longer need them. PROCESS ON YOUR DEVICE Audio transformation runs locally. Microphone audio is not uploaded for cloud processing. Internet access is needed for discovery and downloads; installed sounds can be used offline. Optional downloads require additional storage. PLAY RESPONSIBLY Use recordings and voice models only with the permissions and licences you need. Do not impersonate others or mislead listeners. A model being publicly downloadable does not mean it is cleared for commercial use. For live monitoring, use headphones or a suitable audio interface to avoid feedback. Wired audio is recommended; Bluetooth adds delay. Sound quality varies with the source, model and processing mode. MORF is a creative sound tool, not a guarantee of an indistinguishable voice replica. Learn more: https://ivlt.io/products/morf Quick start: https://ivlt.io/guides/morf-quickstart Privacy: https://ivlt.io/legal/privacy/morf
Screenshots
Verdict
The clearest difference is price: EvilTwin at $2.99 against MORF's $9.99. EvilTwin also leads on device support (4 vs 2) and iOS requirement (12.0 vs 18.0). On 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 MORF $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | EvilTwin | MORF |
|---|---|---|
| Price | $2.99 — better | $9.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 17 MB | 2.0 GB |
| Age rating | 4+ | 4+ |
| Developer | Jeremy Phillips | Michael Ivertowski |
In-app purchases
EvilTwin
No in-app purchases
MORF
No in-app purchases









