Comparison

EvolverFX AUv3 Audio Plugin vs Doubler

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

Head to head
About

EvolverFX AUv3 Audio Plugin

Create multi-layered evolving soundscapes and automatic musical accompaniment. This tool features a sophisticated synthesizer and sequencing engine with four independent lanes, allowing for complex sound design and real-time performance control. It supports MIDI input, audio samples, and harmonic sound generation.

Highlights
  • 4 independent sequencer lanes
  • Up to 64 steps per sequence
  • MIDI keyboard input
  • Audio sample layering
  • Harmonic sound generation
  • Real-time performance controls
  • ARP function
Features
Read full description

Evolver is a performance tool for creating multi-layered evolving sequences of sound. At its most basic think of evolver as a 4 lane sequencer which creates automatic accompaniment from notes and chords as you play on your MIDI keyboard, but it can also be used to create elastic evolving soundscapes where audio samples seamlessly merge into one another to create highly complex and original sounds. At the heart of evolver is a sophisticated wave synthesizer and sequencing engine which can create dramatic hard hitting transitions of sounds or merge sounds to create seamless transitions that evolve in time to the beat. It has 4 sequencer lanes which can run independently and mixed together using the real-time controls or over MIDI. When you play a chord on your MIDI keyboard for instance, each of the 4 sequencer lanes will take those MIDI notes and translate them into a musical sequence of sounds which are combined together and synced to create a form of automatic accompaniment. Evolver can load its own multi-layer patches or import them directly from Chameleon. These patches can be layered using the 4 sequencer lanes or split over a virtual keyboard. You can assign key zones, transpose them, assigned MIDI channels and velocity levels, set latch options etc. You can also load in your own one shot samples and lay them end on end to create evolving atmospheres or backing soundscapes. These samples can be looped or be free running with definable start/end and loop points using our non destructive editor. We also included a third sound source which lets you build sounds on the fly by overlaying harmonics to create anything from traditional sine, square, triangle, saw waves to complex detuned oscilators. These can be used in conjunction with multi-samples or one-shot-samples within the same sequencer lane. You can even randomize a complete sequence of harmonic sounds which when pieced together create some very unique and dynamic voices. Each sequencer lane can be up to 64 steps in length, each step has independent timing, pitch, volume, gate, probability, sample source etc. so the scope of what is achievable is vast. Each sequencer lane has its own ADSR, VCF and LFO which operates on all sounds within its lane, as well as being able to change the underlying settings for each sound source. Evolver also includes an ARP function which can be run in one of the default modes or you can define your own fingering patterns to be used to enhance your playing style. Create your own sequences, lay down your MIDI notes in your DAW and have Evolver automatically play along to your chord sequences, automatically locking to the host tempo. Sequencer events can be fixed or transposed allowing you to create percussive and drum backing using a single lane. Key Features: • 4 sequencer lanes • Up to 64 notes per sequence. • Each note can be fixed or transposed. • Timing and note probability. • 3 different sound source types (multi-sample, one-shot samples and harmonic) . • Add your own loops to a sequence. • Built in ARP function. • Import your own samples and mutli-sample patches. • Chameleon Support. • 5 different effect types (reverb, delay, phaser, flanger and chorus). • 8 band EQ. • .Latch Feature to hold chords/notes. • Create independent key zones with transposition and MIDI channels. • Paramter Automation from your DAW. • Control mixing and sequencer enable buttons using MIDI. • Built in Sampler. • Multiple Import options (including an experimental SFZ format). • iTunes and Files App importing of samples into the audio pool. • Files App Drag & Drop Support • Comprehensive Help pages included. Please Note: Not all features are currently compatible with Auria.

About

Doubler

This real-time audio effect plugin creates a natural doubling sound for instruments and vocals. It adds richness and depth, making guitar parts sound massive and enabling flam-like effects on drums. Adjust variation parameters for precise control over the desired doubling effect.

Highlights
  • Real-time stereo doubling
  • Enhances guitar, vocals, and polyphonic instruments
  • Adds richness and depth
  • Creates massive sound for riffs and solos
  • Automatic vocal and instrument doubling
  • Flam-like effects for drums
  • Adjustable variation parameters
Features
Read full description

The Nembrini Audio Doubler tracker turns your guitar performance into a stereo, double-tracked signal in real time, as if two guitarists were playing the same track left and right. Nembrini Audio Doubler is a plug-in designed to enhance your guitar, vocal or polyphonic instrument with a natural doubling effect, adding richness and depth. - Makes your guitar riffs and solos sound massive - Double vocal parts and polyphonic instrument automatically - Add flam-like effects to drums Just put Nembrini Audio real-time Doubler tracking plugin on your track, and adjust the variation parameters controls to create exactly the doubling effect you’re looking for Instant doubling. Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect

Screenshots

EvolverFX AUv3 Audio Plugin4 screens
Doubler1 screens

Verdict

The call

The clearest difference is review sentiment: EvolverFX AUv3 Audio Plugin at 72% against Doubler's 0%. EvolverFX AUv3 Audio Plugin also leads on rating (4.7 vs 3.8) and ratings volume (35 vs 6). Doubler's advantage is price ($7.99 vs $14.99) and iOS requirement (9.3 vs 13). On update cadence, ads, in-app purchases and monetization model 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

EvolverFX AUv3 Audio Plugin costs $14.99 and Doubler $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

EvolverFX AUv3 Audio Plugin holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: EvolverFX AUv3 Audio Plugin has 35 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 72% of EvolverFX AUv3 Audio Plugin's written reviews are positive against 0% of Doubler's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 7, 2026 and September 24, 2026 respectively.

Scorecard5 real differences · 5 level
EvolverFX AUv3 Audio Plugin versus Doubler: the parameters behind the verdict, then further details
ParameterEvolverFX AUv3 Audio PluginDoubler
Price$14.99$7.99 — better
Rating4.7 (35 ratings) — better3.8 (6 ratings)
Positive reviews72.2% of reviews — better0.0% of reviews
Number of ratings35 — better6
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS139.3 — better
Further details — not scored
Size861 MB32 MB
Age rating4+4+
Developer4Pockets.comNembrini Audio

Customer experience

EvolverFX AUv3 Audio Plugin

All ratings35 ratings
Positive88.6%
Neutral8.6%
Negative2.9%
Written reviews36 reviews
Positive72.2%
Neutral13.9%
Negative13.9%

Doubler

All ratings6 ratings
Positive50.0%
Neutral33.3%
Negative16.7%
Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

In-app purchases

None

EvolverFX AUv3 Audio Plugin

No in-app purchases

None

Doubler

No in-app purchases

Questions

Is EvolverFX AUv3 Audio Plugin free?
EvolverFX AUv3 Audio Plugin costs $14.99, with no in-app purchases.
Is Doubler free?
Doubler costs $7.99, with no in-app purchases.
Which has better reviews, EvolverFX AUv3 Audio Plugin or Doubler?
EvolverFX AUv3 Audio Plugin is rated higher. EvolverFX AUv3 Audio Plugin averages 4.7 out of 5 from 35 ratings, while Doubler averages 3.8 from 6 ratings.
Do EvolverFX AUv3 Audio Plugin or Doubler have ads?
Neither EvolverFX AUv3 Audio Plugin nor Doubler shows ads.
Which is updated more often, EvolverFX AUv3 Audio Plugin or Doubler?
EvolverFX AUv3 Audio Plugin ships an update every 3 weeks, and Doubler every 3 weeks. Most recently, EvolverFX AUv3 Audio Plugin was updated on September 7, 2026 and Doubler on September 24, 2026.

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