# sumFX vs Gorilla

The clearest difference is rating: Gorilla at 4.9 against sumFX's 4.4. Gorilla also leads on update cadence (every 2 months vs every 6 months) and review sentiment (67% vs 50%). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

sumFX costs $9.99 and Gorilla $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Gorilla holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 12 and 8 respectively. Written reviews point the same way: 50% of sumFX's written reviews are positive against 67% of Gorilla's.

sumFX ships an update every 6 months, Gorilla every 2 months. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | sumFX | Gorilla |
| --- | --- | --- |
| Price | $9.99 | **$6.99** |
| Rating | [4.4 (12 ratings)](https://appshunter.io/ios/app/sumfx/id6450494474/reviews) | **[4.9 (8 ratings)](https://appshunter.io/ios/app/gorilla-bass-studio-suite/id6553996054/reviews)** |
| Number of ratings | **12** | 8 |
| Positive reviews | 50.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 44 MB | 25 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OSC Audio](https://appshunter.io/developer/1693533681) | [Aurora DSP](https://appshunter.io/developer/1517411434) |

## What reviewers say

### sumFX

[App page](https://appshunter.io/ios/app/sumfx/id6450494474)

This app is a versatile audio effects processor for musicians. It offers a modular design with multiple high-quality FX modules and customizable slots, allowing for quick creation of unique sounds. Focus on your music with intuitive controls and visual feedback.

**Highlights:** Modular multi-FX processor, 8 high-quality FX modules, 8 FX slots with Wet/Dry control, 2 LFOs per slot, 50+ cross-platform presets, Pre/post waveform view

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

**In-app purchases:** none


### Gorilla

[App page](https://appshunter.io/ios/app/gorilla-bass-studio-suite/id6553996054)

Create professional bass tones with this comprehensive suite. It offers multiple preamps, a 3-way splitter with compression and saturation, an octaver, and custom IR loading. Includes artist presets and a built-in tuner for a complete bass experience.

**Highlights:** Three distinct preamps, 3-way splitter with compressor/saturator, Octaver for sound depth, Custom IR loading, Artist-curated presets, Built-in tuner, AUv3 support

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

**In-app purchases:** none


## Frequently asked questions

### Is sumFX free?

sumFX costs $9.99, with no in-app purchases.

### Is Gorilla free?

Gorilla costs $6.99, with no in-app purchases.

### Which has better reviews, sumFX or Gorilla?

Gorilla is rated higher. sumFX averages 4.4 out of 5 from 12 ratings, while Gorilla averages 4.9 from 8 ratings.

### Do sumFX or Gorilla have ads?

Neither sumFX nor Gorilla shows ads.

### Which is updated more often, sumFX or Gorilla?

sumFX ships an update every 6 months, and Gorilla every 2 months. Most recently, sumFX was updated on November 7, 2026 and Gorilla on November 4, 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.*