# FAC Phazer — Swooshing Phaser AUv3

> Phaser audio effect plugin with adjustable LFO, unique characters, and extensive control. (iPhone/iPad app by Frederic Corvest.)

- Source: https://appshunter.io/ios/app/fac-phazer/id1507540450 (this page in markdown: same URL + `.md`)
- Developer: [Frederic Corvest](https://appshunter.io/developer/1230164765)
- Category: Music
- Price: $9.99 with in-app purchases
- Rating: 5.00/5 from 30 App Store ratings · 18 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.4 · 3 MB
- Languages: American English
- Released: 2020-05-04
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/fac-phazer/id1507540450/reviews.md

## What is FAC Phazer?

• Inspired by famous phaser units from guitarist and keyboardist world
• Unique sonic character combined with a large amount of control
• Adjustable LFO; diverse waveforms and synchronizable to host tempo
• Versatile: External modulation (parameters), Step mode, and more
• Unique Butterfly Meter: Shows LFO modulation and output level
• Suitable for all musical genres and instruments
• Stereo, adjustable phase modulation distance between both channels
• Includes various presets for inspiration
• Advanced Responsive Design, portrait and landscape views
• Universal Purchase: AUv3 for iOS (iPad/iPhone), macOS and Vision Pro

FAC Phazer will satisfy most fans of phasing effects, seducing them with its rich sonic palette and elegant interface. To achieve the classic phase effect, the original signal is blended with a slightly out-of-phase copy of itself. Altering the timing difference between the two signals produces the swooshing sound characteristic of phasing.

Most phaser units available on the market are built around this circuit topology, each with its own specificities and limitations. Guitar pedals provide a great sonic signature out of the box and are a great source of inspiration, but we often overlook the impressive built-in effects sections of some hardware synthesizers. FAC Phazer combines the best of both worlds into a single plugin, offering access to all parameters involved in crafting the phasing effect.

The design and development were inspired by both pedals and built-in phaser effects found in hardware synthesizers. This led to the creation of four unique characters: Classic, Midori, Step, and Tirus. All parameters can be applied to each of these characters, allowing you to create new, exciting, and outstanding sounds.

The presets Slow, Moderate, and Jumpy Phase Pedal or also Fleur d’Oranger bring the classic pedals sound signature within your reach. If you're seeking more modern characteristics, the Step Sound I preset offers a splendid stepping mode, while the Midori Phase Shift II preset emphasizes the feedback in a unique way. On the other hand, the Tirus Anthem preset is an excellent starting point for exploring phasing effects produced with built-in synthesizer effects.

An important aspect that strongly contributes to the variety of the sonic palette provided by the plugin is the modulation options. The LFO can run in free mode, be synchronized to the host tempo, or be defined by external automation parameters.

The documentation is available at fredantoncorvest.com/FAC_Phazer.html

## Key features

- Inspired by classic phaser units
- Adjustable LFO with tempo sync
- Four unique sonic characters
- External modulation and Step mode
- Stereo phase modulation
- Universal AUv3 purchase

## Pricing and in-app purchases

Base price: $9.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Large Tip | $14.99 | one-time |
| Medium Tip | $4.99 | one-time |


## Recent user reviews (10 of 18)

All indexed reviews: https://appshunter.io/ios/app/fac-phazer/id1507540450/reviews.md

### 5/5 — Jack

*2026-01-13*

Super fun

### 5/5 — Dynamically Big!! (+thx to the dev)

*2025-01-17*

Just grab this phaser and start using it. The presets alone are enough to add another level to your audio tracks. Whether you want something subtle with a slow rate and shallow depth, to an exaggerated and saturated depth with a slow or wacky fast rate it will add color to your audio in a musical way. 

I noticed recently that this dev had refunded my purchase of the previous drumming app. I only had for a short period of time until it disappeared. But I got some confirmation of a refund (pretty sure anyway), which is a 5 star move. 
I still intend to acquire the newer available drumming app however. It’s a little more $, but I want everything these days?

### 5/5 — Best sounding phaser available

*2024-12-16*

Just get it. And it works on desktop and mobile!

### 2/5 — Developer

*2024-12-09*

I purchased your drum synth machine app at a moment when you must have been planning to dump it into legacy and offer a new app. 
So I got barely anytime with it before it vanished. 
What did I pay? Don’t recall but I can look it up. I want to say $8. So I wrote an email asking support if that app I paid for was now just gone. 
Response was “yes”.
Expected something different. The Phazer is thick with great sounds and it will take some time just to exhaust the presets.
But I have no idea what’s up with the drumming app cause it was pulled after I paid for it and iOS updated. Not very cool.

**Developer response:** Thanks for reaching out! It seems there might be some confusion here. I haven’t placed any app into legacy, nor have I received any emails regarding such a request. It’s possible you’ve mistakenly mentioned me about another developer’s app.

If you think this is an error, feel free to get in touch via support, and I’ll be happy to assist further.

### 5/5 — FACts,💯EVOLVER 🙌ALTEZA💯🙏😍

*2023-11-02*

Thankfully this adeV Fred right said it, Amazing 0ne wish we could be together again said my distant ech o, 💥 Another great Addition should i die before i wakes i said clearly i love 💕 the "sound" it reVerberr ate's 
and the die is caster's so yeah that help , i read these, GPT for a second i think not 🤔therefore i am 
for sure i though this is it , that extra, Gen Eh say Qua... ck 🦆...

### 5/5 — Analog Luscious Gooey-ness!

*2023-08-12*

FAC has made a delicious, gooey phaser! I use this, and FAC Chorus on my bass signal chain to add lushness and life to my tone. Easily bests the best phaser tone I could dial in using brand 'B’s iOS phaser app. Sounds analog in the very best way.

### 1/5 — Not auv3!….edit it’s cool

*2023-08-07*

I assumed it was an AUV3 app. Would like a refund please. It’s useless to me.

Ok. It just didn’t immediately show up on my DAW. But it was there with everything else. It’s cool. Works nice.

**Developer response:** FAC Phazer is an AUv3 plugin! You need a host like AUM, Garage Band, Logic… to run it.

### 1/5 — Not auv3!

*2023-08-06*

I assumed it was an AUV3 app. Would like a refund please. It’s useless to me.

**Developer response:** FAC Phazer is an AUv3 plugin! You need a host like AUM, Garage Band, Logic… to run it.

### 5/5 — Outstandingly Breathtaking

*2023-02-17*

I’m been a massive Tangerine Dream/Ozric Tentacles/Jean Michel Jarre fan for years….too many years to remember, but they all have one thing in common and that is they all use an intensely powerful Phaser…..and that sound fx is here… the FAC Phazer, a perfect reincarnation of the original. It’s absolutely breathtaking, the many different types of phasing fx are just superb and powerful. I have many synth apps that have phasers built into them, but they just don’t compare with this ⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️

### 5/5 — Musical

*2022-02-22*

This phaser is the best sounding, adjustable, adaptable and most importantly, most musical that I’ve come across for iOS. Highly recommended - I am an instant fan.

## Frequently asked questions about FAC Phazer

### What kind of phasing effects can FAC Phazer create?

FAC Phazer can create classic swooshing phase effects by blending the original signal with a slightly out-of-phase copy. It offers four unique characters: Classic, Midori, Step, and Tirus, allowing for a wide range of sonic exploration.

### How is FAC Phazer's LFO adjustable?

The LFO in FAC Phazer can run in free mode, be synchronized to the host tempo, or be controlled by external automation parameters. This provides significant flexibility in shaping the modulation.

### What devices is FAC Phazer compatible with?

FAC Phazer is a universal purchase and is compatible with macOS, iPhone, and iPad. It utilizes the AUv3 format for integration with compatible hosts.

### What is the price of FAC Phazer?

FAC Phazer is available for a one-time purchase of $9.99. This grants access to all features and updates across supported devices.

### How often is FAC Phazer updated?

FAC Phazer was last updated on July 27, 2025, indicating active development and support. The current version is 1.2.2.

### What is the age rating for FAC Phazer?

FAC Phazer has an age rating of 4+, making it suitable for a wide range of users. This rating suggests no mature content is present.

### Where can I find documentation for FAC Phazer?

Detailed documentation for FAC Phazer, including information on its features and usage, is available at fredantoncorvest.com/FAC_Phazer.html.

### What makes FAC Phazer unique compared to other phaser plugins?

FAC Phazer distinguishes itself by combining inspirations from both guitar pedals and hardware synthesizers, offering four distinct sonic characters and a unique Butterfly Meter to visualize modulation and output levels.

## Version history (last 5 releases)

### 1.2.2 — 2025-07-27

+ Maintenance update

How to support FAC? : Rate and Review ALL of your FAC apps • Buy a t-shirt • Tip...
Contact: support •• fredantoncorvest.com

### 1.2.1 — 2025-02-26

Bug fix and maintenance update

### 1.2 — 2024-12-16

- UI Migration to SwiftUI
- Smoother Adjustments & Clearer Feedback: Enhanced interaction with knobs and sliders, providing more precise control
- New Touch Gestures:
  - Drag horizontally for fine adjustments (vertically for regular mode)
  - Double tap to reset to default
  - Single tap to cycle through indexed parameters
  - Long press to enter a value manually (input dialog)
- Maintenance Update

How to support FAC? : Rate and Review ALL of your FAC apps • Buy a t-shirt • Tip...
Contact: support •• fredantoncorvest.com

### 1.1 — 2020-06-17

• NEW: Add two new models: Midori And Step
• NEW: Add new waveforms: Fall, Rise and Sample & Hold
• NEW: Addition of new presets
• NEW: Addition of UI markers for data ranges (center freq and lfo knobs)
• Fix center freq and lfo ranges
• Various fixes and improvement

### 1.0 — 2020-05-01

No release notes.

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## More apps by Frederic Corvest

- [FAC Chorus](https://appshunter.io/ios/app/fac-chorus/id1230164766)
- [FAC Maxima](https://appshunter.io/ios/app/fac-maxima/id1323117302)
- [FAC Transient](https://appshunter.io/ios/app/fac-transient/id1354088081)
- [FAC Envolver](https://appshunter.io/ios/app/fac-envolver/id1378195291)
- [FAC Bandit](https://appshunter.io/ios/app/fac-bandit/id1458633968)
- [FAC Alteza](https://appshunter.io/ios/app/fac-alteza/id1489369665)

All apps by Frederic Corvest: https://appshunter.io/developer/1230164765

## Related topics

[phaser factory](https://appshunter.io/ios/topics/phaser-factory)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*