# Stereo Modulator vs FabFilter Pro

The clearest difference is price: Stereo Modulator at $2.99 against FabFilter Pro's $29.99. Stereo Modulator also leads on update cadence (every 3 months vs every 9 months) and review sentiment (100% vs 86%). FabFilter Pro's advantage is ratings volume (24 vs 3). On ads, in-app purchases and monetization model there is nothing between them.

Stereo Modulator costs $2.99 and FabFilter Pro $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Stereo Modulator holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: FabFilter Pro has 24 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of Stereo Modulator's written reviews are positive against 86% of FabFilter Pro's.

Stereo Modulator ships an update every 3 months, FabFilter Pro every 9 months. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Stereo Modulator | FabFilter Pro |
| --- | --- | --- |
| Price | **$2.99** | $29.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/stereo-modulator/id1370816026/reviews)** | [4.8 (24 ratings)](https://appshunter.io/ios/app/fabfilter-pro-q-2/id1401182622/reviews) |
| Number of ratings | 3 | **24** |
| Positive reviews | **100.0% of reviews** | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Paid | Paid |
| Size | 2 MB | 3 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) | [FabFilter](https://appshunter.io/developer/421796789) |

## What reviewers say

### Stereo Modulator

[App page](https://appshunter.io/ios/app/stereo-modulator/id1370816026)

This audio effect plugin transforms mono sound into stereo, adding width and depth. It uses micro-delays to create a natural sense of space, with optional LFO modulation for a Leslie speaker-like effect without pitch shifting. Ideal for creating separation in mixes, especially for guitars and vocals.

**Highlights:** Mono to stereo conversion, Adjustable stereo width, Optional LFO modulation, Micro-delay de-correlators, Creates natural spatial depth, No pitch shifting or echo

**Features:** macOS Compatibility

**In-app purchases:** none


### FabFilter Pro

[App page](https://appshunter.io/ios/app/fabfilter-pro-q-2/id1401182622)

This professional audio tool offers a high-quality equalizer for mixing and mastering. It features an intuitive interface with up to 24 bands, multiple phase modes, and advanced tools like Spectrum Grab and EQ Match for precise audio editing.

**Highlights:** Up to 24 EQ bands, Natural Phase mode, Spectrum Grab, EQ Match, Interactive EQ display, Universal filter slope support, Mid/side processing

**In-app purchases:** none


## Frequently asked questions

### Is Stereo Modulator free?

Stereo Modulator costs $2.99, with no in-app purchases.

### Is FabFilter Pro free?

FabFilter Pro costs $29.99, with no in-app purchases.

### Which has better reviews, Stereo Modulator or FabFilter Pro?

Stereo Modulator is rated higher. Stereo Modulator averages 5.0 out of 5 from 3 ratings, while FabFilter Pro averages 4.8 from 24 ratings.

### Do Stereo Modulator or FabFilter Pro have ads?

Neither Stereo Modulator nor FabFilter Pro shows ads.

### Which is updated more often, Stereo Modulator or FabFilter Pro?

Stereo Modulator ships an update every 3 months, and FabFilter Pro every 9 months. Most recently, Stereo Modulator was updated on October 15, 2026 and FabFilter Pro on October 5, 2026.

---

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