# TfxReverb vs sumFX

The clearest difference is price: TfxReverb at $1.99 against sumFX's $9.99. TfxReverb also leads on review sentiment (75% vs 55%). On rating, ratings volume, update cadence and ads there is nothing between them.

TfxReverb costs $1.99 and sumFX $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.5 for TfxReverb against 4.4 for sumFX. Both are backed by a comparable volume of ratings — 8 and 12 respectively. Written reviews are what separate them: 75% of TfxReverb's written reviews are positive against 55% of sumFX's.

TfxReverb ships an update every 10 months, sumFX every 6 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TfxReverb | sumFX |
| --- | --- | --- |
| Price | **$1.99** | $9.99 |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/tfxreverb/id1529840178/reviews)** | [4.4 (12 ratings)](https://appshunter.io/ios/app/sumfx/id6450494474/reviews) |
| Number of ratings | 8 | **12** |
| Positive reviews | **75.0% of reviews** | 54.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 months** |
| Monetization | Paid | Paid |
| Size | 2 MB | 44 MB |
| Requires iOS | 13.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Togawa](https://appshunter.io/developer/1474193056) | [OSC Audio](https://appshunter.io/developer/1693533681) |

## What reviewers say

### TfxReverb

[App page](https://appshunter.io/ios/app/tfxreverb/id1529840178)

This audio plugin generates digital reverb effects using a unique algorithm. It offers simple operation with an auto-size mode that adjusts parameters with a single dial, and features delay lines inspired by vintage bucket brigade devices for creative pitch-shifting.

**Highlights:** AudioUnit Extension plugin, BBD-inspired delay lines, Adjustable input filters, LFO modulation, Tempo sync, Auto size mode

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is TfxReverb free?

TfxReverb costs $1.99, with no in-app purchases.

### Is sumFX free?

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

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

TfxReverb is rated higher. TfxReverb averages 4.5 out of 5 from 8 ratings, while sumFX averages 4.4 from 12 ratings.

### Do TfxReverb or sumFX have ads?

Neither TfxReverb nor sumFX shows ads.

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

TfxReverb ships an update every 10 months, and sumFX every 6 months. Most recently, TfxReverb was updated on October 27, 2026 and sumFX on October 24, 2026.

---

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