Comparison

Copperhead vs ab Phaser X

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

Head to head
About

Copperhead

This digital synthesizer plugin offers a vintage 80's sound with modern features like multi-note polyphony, an arpeggiator, and integrated audio effects. Design custom waveforms, explore various modulation options, and utilize a powerful sequencer to craft unique sounds.

Highlights
  • AUv3 compatible
  • Multi-note polyphony
  • Integrated arpeggiator
  • Customizable waveforms
  • Integrated audio effects
  • 32-step sequencer
  • Preset Manager
Features
Read full description

Copperhead is an AUv3 digital subtractive synthesizer plugin which draws its influence from the vintage synthesizers of the early 80's. Only now we have multi-note polyphony, a build in arpeggiator, and a host of integrated audio effects. Copperhead features a custom String Machine, the ability to design your own custom waveforms, as well as supporting oscillator sync and various cross modulation effects. Cross modulation is a type of FM synthesis which can be used to morph simplistic waveforms into something far more aggressive and interesting. At the heart of Copperhead are its two oscillators, which support all your traditional waveforms (SINE,SQR,SAW,TRI), as well as SuperSaw, Trapezium, and other user definable types. The app features pulse width modulation and supersaw, as well as a customisable string engine and the ability to create your own oscillator types. The Voltage Controller Filter supports the usual LP, HP, BP and Notch filters in series or parallel configuration, as well as a couple of unusual ones like Formant which allows you to sweep your cutoff to create interesting vowel sounds. Copperhead also features twin LFO's with random and one shot functionality. It also supports Cross, Ring and FM modulators, in addition to low and high shelf filters. One of the great features is the integrated audio gate, which allows you to generate stuttering audio right out of the box. Combined with effects such as Chorus, Overdrive, Delay, Reverb and Auto Pan / Tremelo, and the ability to specify effect order, you have a lot of control over your sound. If that wasn't enough, we also include a 32 step sequencer, with various mono and poly modes with direct control control of various synth elements. We have a built in Preset Manager which groups presets into banks and groups, which supports drag and drop for easy import/export of presets. You can also access your favourites from a special popup menu, or via the built in quick search facility. Copperhead now ships with over 550 presets which cover just about every instrument category you would ever need. ○ AUv3 compatible. ○ Up to 16 note polyphony. ○ 7 Oscillator wave types. ○ Sub Oscillator. ○ PW/PWM on SQR and TRP waveforms. ○ Supports SuperSaw with MIX and DETUNE. ○ XMod / Ring and FM modulations. ○ Osc Sync. ○ 6 types of VCF filter. ○ Low and High shelf on output. ○ Built in compressor. ○ Chorus, Delay, Overdrive, Reverb and Auto Pan effects. ○ Built in Audio Gate. ○ Preset Manager with Bank/Group/Preset section. ○ Supports drag and drop to import/export presets, groups and banks. ○ Supports web transfer of presets. ○ 32 step arpeggiator. ○ More than 550 built-in presets. NOTE: This is an AUv3 plugin which was designed to be hosted in DAW's such as AUM, Cubasis, GarageBand, Loopy Pro etc.

About

ab Phaser X

This music app offers a versatile phase modulator with 2 to 12 stages. Customize sweeps with controls for rate, depth, frequency, and feedback. Adjust loudness and blend for your final sound.

Highlights
  • 2 to 12 stage phase modulation
  • Rate control (DAW sync or 0.001Hz-10Hz)
  • Depth, Frequency, and Feedback controls
  • Gain and Mix controls for loudness and blend
Features
Read full description

'ab Phaser X' is a phase modulator featuring from 2 to 12 stages. With 'ab Phaser X' you can control the rate of your phase, whether it's synced to your DAW's BPM or freely from 0,001Hz all the way to 10Hz. Depth, Frequency and Feedback controls help you customise your phase sweeps further and finally, a Gain and Mix control will allow you to control the loudness and the blend of the final Phaser.

Screenshots

Copperhead4 screens
ab Phaser X1 screens

Verdict

The call

The clearest difference is price: ab Phaser X at $5.99 against Copperhead's $14.99. ab Phaser X also leads on rating (5.0 vs 4.7). Copperhead's advantage is update cadence (monthly vs every 11 months) and ratings volume (18 vs 5). On ads, in-app purchases, monetization model 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

Copperhead costs $14.99 and ab Phaser X $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ab Phaser X holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 18 and 5 respectively.

UpkeepUpdate frequency

Copperhead ships an update monthly, ab Phaser X every 11 months. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
Copperhead versus ab Phaser X: the parameters behind the verdict, then further details
ParameterCopperheadab Phaser X
Price$14.99$5.99 — better
Rating4.7 (18 ratings)5.0 (5 ratings) — better
Positive reviews83.3% of reviews—
Number of ratings18 — better5
Update frequencyMonthly — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size70 MB8 MB
Age rating4+4+
Developer4Pockets.comAlejandro Cabrera Zuniga

Customer experience

Copperhead

All ratings18 ratings
Positive94.4%
Neutral0.0%
Negative5.6%
Written reviews18 reviews
Positive83.3%
Neutral11.1%
Negative5.6%

ab Phaser X

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Copperhead

No in-app purchases

None

ab Phaser X

No in-app purchases

Questions

Is Copperhead free?
Copperhead costs $14.99, with no in-app purchases.
Is ab Phaser X free?
ab Phaser X costs $5.99, with no in-app purchases.
Which has better reviews, Copperhead or ab Phaser X?
ab Phaser X is rated higher. Copperhead averages 4.7 out of 5 from 18 ratings, while ab Phaser X averages 5.0 from 5 ratings.
Do Copperhead or ab Phaser X have ads?
Neither Copperhead nor ab Phaser X shows ads.
Which is updated more often, Copperhead or ab Phaser X?
Copperhead ships an update monthly, and ab Phaser X every 11 months. Most recently, Copperhead was updated on October 11, 2026 and ab Phaser X on October 10, 2026.

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