# FAC Phazer vs Devil Spring Reverb

The clearest difference is rating: FAC Phazer at 5.0 against Devil Spring Reverb's 4.4. FAC Phazer also leads on review sentiment (83% vs 50%) and ratings volume (30 vs 7). Devil Spring Reverb's advantage is in-app purchases (none vs 3) and price ($3.99 vs $9.99). On update cadence, ads, monetization model and device support there is nothing between them.

FAC Phazer costs $9.99 and Devil Spring Reverb $3.99 up front. FAC Phazer sells 3 one-off in-app purchases. Devil Spring Reverb asks for nothing beyond the download.

FAC Phazer holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 30 and 7 respectively. Written reviews point the same way: 83% of FAC Phazer's written reviews are positive against 50% of Devil Spring Reverb's.

FAC Phazer ships an update every 4 months, Devil Spring Reverb every 5 months. The most recent releases landed on September 22, 2026 and July 16, 2026 respectively.

## The numbers

| Metric | FAC Phazer | Devil Spring Reverb |
| --- | --- | --- |
| Price | $9.99 | **$3.99** |
| Rating | **[5.0 (30 ratings)](https://appshunter.io/ios/app/fac-phazer/id1507540450/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/devil-spring-reverb/id1550838067/reviews) |
| Number of ratings | **30** | 7 |
| Positive reviews | **83.3% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Paid | Paid |
| Size | 3 MB | 87 MB |
| Requires iOS | 16.4 | **11.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Frederic Corvest](https://appshunter.io/developer/1230164765) | [Julien Faure](https://appshunter.io/developer/1544656752) |

## What reviewers say

### FAC Phazer

[App page](https://appshunter.io/ios/app/fac-phazer/id1507540450)

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:** Vision Pro support

**In-app purchases (3)**

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


### Devil Spring Reverb

[App page](https://appshunter.io/ios/app/devil-spring-reverb/id1550838067)

This app emulates the sound of a vintage tube amp's spring reverb, offering a warm, analog feel. It utilizes impulse responses and a custom convolution engine for realistic soundscapes, usable as a standalone application or within a DAW.

**Highlights:** AUv3 support, 38 spring reverb impulse responses, Optimized convolution engine, Adjustable tone and reverb length, Standalone app functionality

**In-app purchases:** none


## Frequently asked questions

### Is FAC Phazer free?

FAC Phazer costs $9.99, and also offers in-app purchases.

### Is Devil Spring Reverb free?

Devil Spring Reverb costs $3.99, with no in-app purchases.

### Which has better reviews, FAC Phazer or Devil Spring Reverb?

FAC Phazer is rated higher. FAC Phazer averages 5.0 out of 5 from 30 ratings, while Devil Spring Reverb averages 4.4 from 7 ratings.

### Do FAC Phazer or Devil Spring Reverb have ads?

Neither FAC Phazer nor Devil Spring Reverb shows ads.

### Which is updated more often, FAC Phazer or Devil Spring Reverb?

FAC Phazer ships an update every 4 months, and Devil Spring Reverb every 5 months. Most recently, FAC Phazer was updated on September 22, 2026 and Devil Spring Reverb on July 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*