Comparison

Perihelion Synth vs EvilTwin

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

Head to head
About

Perihelion Synth

Features
Read full description

Perihelion is an ambient drone synthesizer for creating vast, evolving soundscapes with minimal effort. PHILOSOPHY "Slow gravity, unstable cosmos" — huge pads that breathe and evolve on their own. Set and drift. SOUND ENGINE 8-voice polyphony with organic layering 4 sound macros: MASS, DRIFT, MOTION, SPACE Full ADSR envelope + CHAOS intensity SWELL macro for cinematic builds XY pad for real-time Tone × Energy control Rich effects: chorus, delay, reverb PLAY MODES One-finger chord voicings (Maj, min, sus, 6, Δ7, 7) 13 arp patterns: Alberti, Montuno, Pop Gallop, and more Drone mode with root, power, and triad options Scale quantization: Minor, Dorian, Phrygian, Pentatonic HOLD for sustained notes, chords, or arps 50 FACTORY PRESETS Solar Drones, Grav Pads, Dust & Wind, Sub Temples, Motion Keys, Void FX AUv3 AUDIO UNIT Works as a plugin in AUM, Cubasis, GarageBand, BeatMaker. Full MIDI and automation support. Bluetooth MIDI for external controllers. PERFECT FOR Ambient music production Film and game scoring Meditation and relaxation Sound design and textures Live performance No subscription. No ads. Just sound.

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.

Screenshots

Perihelion Synth4 screens
EvilTwin1 screens

Verdict

The call

The clearest difference is price: EvilTwin at $2.99 against Perihelion Synth's $9.99. EvilTwin also leads on iOS requirement (12.0 vs 15.0). 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

CostPrice · In-app purchases · Ads · Monetization

Perihelion Synth costs $9.99 and EvilTwin $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 7 level
Perihelion Synth versus EvilTwin: the parameters behind the verdict, then further details
ParameterPerihelion SynthEvilTwin
Price$9.99$2.99 — better
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.012.0 — better
Further details — not scored
Size19 MB17 MB
Age rating4+4+
DeveloperJOSIAH BUJANDAJeremy Phillips

In-app purchases

None

Perihelion Synth

No in-app purchases

None

EvilTwin

No in-app purchases

Questions

Is Perihelion Synth free?
Perihelion Synth costs $9.99, with no in-app purchases.
Is EvilTwin free?
EvilTwin costs $2.99, with no in-app purchases.
Do Perihelion Synth or EvilTwin have ads?
Neither Perihelion Synth nor EvilTwin shows ads.

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