# Electro Siren vs FAC Phazer

The clearest difference is review sentiment: FAC Phazer at 83% against Electro Siren's 35%. FAC Phazer also leads on rating (5.0 vs 2.7). Electro Siren's advantage is in-app purchases (none vs 3) and price ($2.99 vs $9.99). On ratings volume, update cadence, ads and monetization model there is nothing between them.

Electro Siren costs $2.99 and FAC Phazer $9.99 up front. FAC Phazer sells 3 one-off in-app purchases. Electro Siren asks for nothing beyond the download.

FAC Phazer holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 18 and 30 respectively. Written reviews point the same way: 35% of Electro Siren's written reviews are positive against 83% of FAC Phazer's.

Electro Siren ships an update every 5 months, FAC Phazer every 4 months. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Electro Siren | FAC Phazer |
| --- | --- | --- |
| Price | **$2.99** | $9.99 |
| Rating | [2.7 (18 ratings)](https://appshunter.io/ios/app/electro-siren/id645217265/reviews) | **[5.0 (30 ratings)](https://appshunter.io/ios/app/fac-phazer/id1507540450/reviews)** |
| Number of ratings | 18 | **30** |
| Positive reviews | 34.7% of reviews | **83.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Paid | Paid |
| Size | 23 MB | 3 MB |
| Requires iOS | **12.1** | 16.4 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Sawa Digital LLC](https://appshunter.io/developer/307147848) | [Frederic Corvest](https://appshunter.io/developer/1230164765) |

## What reviewers say

### Electro Siren

[App page](https://appshunter.io/ios/app/electro-siren/id645217265)

This app provides a powerful DJ toolkit for electronic music enthusiasts. Access over 1000 radio stations and apply a variety of real-time effects and sound generators to your music library or streams.

**Highlights:** 1000+ electronic music radio stations, Intuitive XY-pad DJ effects, High pass/low pass filters, Tap tempo delay, Stutter/glitch effect, Digital oscillator banks for rise/drop sounds

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Electro Siren free?

Electro Siren costs $2.99, with no in-app purchases.

### Is FAC Phazer free?

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

### Which has better reviews, Electro Siren or FAC Phazer?

FAC Phazer is rated higher. Electro Siren averages 2.7 out of 5 from 18 ratings, while FAC Phazer averages 5.0 from 30 ratings.

### Do Electro Siren or FAC Phazer have ads?

Neither Electro Siren nor FAC Phazer shows ads.

### Which is updated more often, Electro Siren or FAC Phazer?

Electro Siren ships an update every 5 months, and FAC Phazer every 4 months. Most recently, Electro Siren was updated on October 17, 2026 and FAC Phazer on October 9, 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.*