Comparison

EvilTwin vs Velvet Vocoder

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Velvet Vocoder

Features
Read full description

VV17 turns your iPhone and iPad into a real-time vocal studio — auto-tune, harmony, and vocoder in one app. Sing or speak into your device and VV17 corrects your pitch to any key and scale as you go. Turn on harmony and it stacks up to four in-key voices under your lead, TC-Helicon style. Switch to Vocode mode and play a MIDI keyboard to drive the tuning by hand — your lead locks to the nearest held note while the others become live harmonies. FEATURES • Real-time auto-tune with adjustable correction amount and speed, from natural to hard-tuned • Automatic diatonic harmonies — stacked in-key thirds, 1 to 4 voices • Infinite mode swaps the harmony stack for a shimmering harmonic series • Vocode mode: control the tuner live from held MIDI notes • Classic vocoder / talkbox synth layer driven by your voice • Choose your key and scale, or explore just-intonation temperaments • Vocal FX: spread, humanize, sibilance, and response controls • Presets to get you started, including lush choir and modern hard-tune rigs • Works standalone or as an Audio Unit (AUv3) plugin inside GarageBand, AUM, Cubasis, and other hosts All processing happens on your device. No account, no sign-up, no data collection.

Screenshots

EvilTwin1 screens
Velvet Vocoder3 screens

Verdict

The call

The clearest difference is price: EvilTwin at $2.99 against Velvet Vocoder's $24.99. On ads, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

EvilTwin costs $2.99 and Velvet Vocoder $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 8 level
EvilTwin versus Velvet Vocoder: the parameters behind the verdict, then further details
ParameterEvilTwinVelvet Vocoder
Price$2.99 — better$24.99
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod, MaciPhone, iPad, iPod, Mac
Requires iOS12.012.0
Further details — not scored
Size17 MB17 MB
Age rating4+4+
DeveloperJeremy PhillipsPaul Wand

In-app purchases

None

EvilTwin

No in-app purchases

None

Velvet Vocoder

No in-app purchases

Questions

Is EvilTwin free?
EvilTwin costs $2.99, with no in-app purchases.
Is Velvet Vocoder free?
Velvet Vocoder costs $24.99, with no in-app purchases.
Do EvilTwin or Velvet Vocoder have ads?
Neither EvilTwin nor Velvet Vocoder shows ads.

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