Comparison

FAC Phazer vs springVerb

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

Head to head
About

FAC Phazer

This music effect plugin offers a rich sonic palette inspired by classic guitar pedals and hardware synthesizers. It provides extensive control over phasing effects with adjustable LFOs, unique characters, and versatile modulation options for all instruments and genres.

Highlights
  • 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
Features
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• 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

About

springVerb

This app offers a wide range of vintage and modern spring reverb effects for music production. It features 14 distinct spring modes and extensive controls for deep sound customization, including EQ and automation. Presets can be saved and shared across platforms.

Highlights
  • 14 Spring Reverb Models
  • 16+ In-depth Controls
  • Built-in 3-band EQ
  • Preset Manager
  • Cross-platform Preset Sharing
  • Automation Control
Features
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Vintage Vibes, Timeless Reverberations Spring reverb has a long history, making its debut on organ sounds and rapidly gaining attention after being built into some of the most famous guitar amps known to man. In today's musical world, spring reverb is now pretty much used on anything that could use just a touch of ambience. Experience Spring in Full Spectrum with 14 Vibrant Spring Modes springVerb is packed with 14 spring modes to give you a wide range of spring sounds to take your sounds to the next level. Fully Customizable Sound for Any Situation Unlock the full sonic potential of each mode with in-depth controls; Mix, Dampening, Ducking, Left/Right Repeats and Decay. Their three band EQ Section (Low, Mid, and High), and master controls (Master Volume & Pan). Seamless Integration Across Platforms. All settings can be saved and loaded in your sessions as well as cross platform presets. All parameters offer automation control to get the most expressive sound. Features - 14 Spring Reverb Models; ranging from early/vintage styles to creatively inspiring and modern/futuristic - Over 16 In-depth controls to sculpt your reverbs, including: Pre Delay, Decay, Damping, Repeat Speed, Ducking, and more! - Built-in 3-band EQ section for additional sonic character control - Preset Manager with Save, Save As, Rename, and Delete functionality - Over 20 Factory presets, including both Send and Insert styles - Cross-platform support: presets can be shared between iOS and macOS & Windows

Screenshots

FAC Phazer3 screens
springVerb4 screens

Verdict

The call

The clearest difference is review sentiment: FAC Phazer at 83% against springVerb's 0%. FAC Phazer also leads on rating (5.0 vs 4.3) and ratings volume (30 vs 6). springVerb's advantage is in-app purchases (none vs 3) and price ($4.99 vs $9.99). On update cadence, ads, 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

FAC Phazer costs $9.99 and springVerb $4.99 up front. FAC Phazer sells 3 one-off in-app purchases. springVerb asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FAC Phazer holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: FAC Phazer has 30 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 83% of FAC Phazer's written reviews are positive against 0% of springVerb's.

UpkeepUpdate frequency

FAC Phazer ships an update every 4 months, springVerb every 5 months. The most recent releases landed on September 22, 2026 and September 7, 2026 respectively.

Scorecard6 real differences · 4 level
FAC Phazer versus springVerb: the parameters behind the verdict, then further details
ParameterFAC PhazerspringVerb
Price$9.99$4.99 — better
Rating5.0 (30 ratings) — better4.3 (6 ratings)
Positive reviews83.3% of reviews — better0.0% of reviews
Number of ratings30 — better6
Update frequencyEvery 4 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.412.0 — better
Further details — not scored
Size3 MB80 MB
Age rating4+4+
DeveloperFrederic CorvestOSC Audio

Customer experience

FAC Phazer

All ratings30 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews18 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

springVerb

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

FAC Phazer

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

springVerb

No in-app purchases

Questions

Is FAC Phazer free?
FAC Phazer costs $9.99, and also offers in-app purchases.
Is springVerb free?
springVerb costs $4.99, with no in-app purchases.
Which has better reviews, FAC Phazer or springVerb?
FAC Phazer is rated higher. FAC Phazer averages 5.0 out of 5 from 30 ratings, while springVerb averages 4.3 from 6 ratings.
Do FAC Phazer or springVerb have ads?
Neither FAC Phazer nor springVerb shows ads.
Which is updated more often, FAC Phazer or springVerb?
FAC Phazer ships an update every 4 months, and springVerb every 5 months. Most recently, FAC Phazer was updated on September 22, 2026 and springVerb on September 7, 2026.

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