Comparison

FAC Chorus vs PhaseX

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

Head to head
About

FAC Chorus

This app delivers an authentic, lush, and organic chorus effect with analog-style circuitry. It offers versatile modulation, from subtle doubling to rich swirling sounds, and can function as a chorus, flanger, or vibrato. Expanded controls and feedback options provide deep sonic shaping for professional music production.

Highlights
  • Authentic analog-style bucket brigade circuitry
  • Subtle doubling to rich swirling modulation
  • Chorus, Flanger, or Vibrato modes
  • Expanded controls with multiple characters
  • Feedback control for flanger-like textures
  • AUv3 plugin for iOS, macOS, and Vision Pro
Features
Currently charting
Read full description

• Authentic, lush, and organic chorus effect • True analog-style bucket brigade circuitry • A modern reissue of the most iconic hardware units • Ranges from subtle doubling to rich, swirling modulation • Versatile usage: Chorus, Flanger, or Vibrato • Expanded controls with multiple characters and waveforms • Feedback control for rich, flanger-like textures • A favorite chorus in the iOS music community • Advanced Responsive Design, portrait and landscape views • Universal Purchase: AUv3 for iOS (iPad/iPhone), macOS and Vision Pro FAC Chorus brings depth and movement to your sounds with an authentic, lush, and organic character. Built with true analog-style bucket brigade circuitry, this plugin is a modern reissue of some of the most iconic hardware units, faithfully capturing their distinctive tone. The effect ranges from subtle doubling to rich, swirling modulation, covering different uses as a Chorus, Flanger, or Vibrato. The expanded modulation controls, multiple characters, and LFO waveforms allow precise shaping of your sound, giving you complete creative flexibility. In addition, the feedback control adds rich, flanger-like textures for dynamic sonic effects. Under the hood, the plugin uses two individual delay line paths. Each path’s behavior is determined by the character parameter: Thick and BBD provide warm, classic BBD-style tones, while Clean delivers a more transparent tone with greater modulation. This chorus has become a favorite in the iOS music community, combining vintage inspiration with modern control to deliver professional-quality sound in any production. This is an AUv3 Effect and requires a compatible host to work The in-app purchases are for tipping only, the app is fully functional without them The documentation is available at fredantoncorvest.com/FAC_Chorus.html

About

PhaseX

This app offers a stereo phaser audio effect with three classic modes: MXR Phase 90, Phase 45, and Shin-ei Uni-Vibe. It allows for versatile sound shaping with simple parameters, providing classic and modern phaser sounds, including stereo phasing/vibrato as an alternative to chorus effects.

Highlights
  • Stereo phaser audio effect
  • Three classic modes (MXR Phase 90, Phase 45, Uni-Vibe)
  • Simple, versatile parameters
  • Modern phaser sound extensions
  • Stereo phasing/vibrato alternative to chorus
Features
Read full description

PhaseX is an interpretation of classic phaser effects with beautiful stereo sound. It offers 3 basic modes: MXR Phase 90, Phase 45 and Shin-ei Uni-Vibe. Its simple parameters offer standard phaser sounds as well as great modern extensions, making it versatile yet self-explanatory. Choose between typical classic phasing, more gentle Uni-Vibe feeling or the more subtle, less dominant (underestimated) phase 45 sound. "Modify" the classics with the feedback setting and, as special cherry on your cake, discover stereo phasing/vibrato as a nice alternative to chorus effects, avoiding the chorus/flanger inherent "fuzziness" of attack transients.

Screenshots

FAC Chorus2 screens
PhaseX2 screens

Verdict

The call

The clearest difference is in-app purchases: PhaseX at none against FAC Chorus's 3. PhaseX also leads on update cadence (every 2 weeks vs every 5 months) and price ($5.99 vs $9.99). FAC Chorus's advantage is ratings volume (61 vs 1) and chart position (#189 vs unranked). On ads, 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

FAC Chorus costs $9.99 and PhaseX $5.99 up front. FAC Chorus sells 3 one-off in-app purchases. PhaseX asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PhaseX holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: FAC Chorus has 61 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

FAC Chorus ships an update every 5 months, PhaseX every 2 weeks. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

Scorecard7 real differences · 4 level
FAC Chorus versus PhaseX: the parameters behind the verdict, then further details
ParameterFAC ChorusPhaseX
Price$9.99$5.99 — better
Rating4.8 (61 ratings)5.0 (1 ratings) — better
Positive reviews95.0% of reviews—
Number of ratings61 — better1
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#189 — better—
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS16.4 — better17.6
Further details — not scored
Size4 MB7 MB
Age rating4+4+
DeveloperFrederic Corvestmattoncino software

Customer experience

FAC Chorus

All ratings61 ratings
Positive96.7%
Neutral0.0%
Negative3.3%
Written reviews40 reviews
Positive95.0%
Neutral2.5%
Negative2.5%

PhaseX

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

FAC Chorus

One-time3
  • Small Tip$1.99
  • Medium Tip$4.99
  • Large Tip$14.99
None

PhaseX

No in-app purchases

Questions

Is FAC Chorus free?
FAC Chorus costs $9.99, and also offers in-app purchases.
Is PhaseX free?
PhaseX costs $5.99, with no in-app purchases.
Which has better reviews, FAC Chorus or PhaseX?
PhaseX is rated higher. FAC Chorus averages 4.8 out of 5 from 61 ratings, while PhaseX averages 5.0 from 1 ratings.
Do FAC Chorus or PhaseX have ads?
Neither FAC Chorus nor PhaseX shows ads.
Which is updated more often, FAC Chorus or PhaseX?
FAC Chorus ships an update every 5 months, and PhaseX every 2 weeks. Most recently, FAC Chorus was updated on October 11, 2026 and PhaseX on October 7, 2026.

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