# FD vs TfxReverb

The clearest difference is update cadence: FD at every 4 months against TfxReverb's every 10 months. FD also leads on ratings volume (32 vs 8) and iOS requirement (9.0 vs 13.6). TfxReverb's advantage is review sentiment (75% vs 67%). On price, rating, ads and in-app purchases there is nothing between them.

FD costs $4.99 and TfxReverb $4.99 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 — 4.6 for FD against 4.5 for TfxReverb. Both are backed by a comparable volume of ratings — 32 and 8 respectively. Written reviews are what separate them: 67% of FD's written reviews are positive against 75% of TfxReverb's.

FD ships an update every 4 months, TfxReverb every 10 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | FD | TfxReverb |
| --- | --- | --- |
| Price | $4.99 | $4.99 |
| Rating | **[4.6 (32 ratings)](https://appshunter.io/ios/app/fd-1-filter-delay/id1448696965/reviews)** | [4.5 (8 ratings)](https://appshunter.io/ios/app/tfxreverb/id1529840178/reviews) |
| Number of ratings | **32** | 8 |
| Positive reviews | 66.7% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | Paid | Paid |
| Size | 61 MB | 2 MB |
| Requires iOS | **9.0** | 13.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## What reviewers say

### FD

[App page](https://appshunter.io/ios/app/fd-1-filter-delay/id1448696965)

This app is a semi-modular audio effect plugin featuring dedicated filter, delay, and modulation sections. It allows for the creation of rhythmic filter sequences and a wide range of complex audio effects through its flexible modulation matrix.

**Highlights:** Semi-modular effect plugin, Modulated filter section, Delay stage, Step sequencer, Low Frequency Oscillator, Mod matrix, Tempo sync

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is FD free?

FD costs $4.99, with no in-app purchases.

### Is TfxReverb free?

TfxReverb costs $4.99, with no in-app purchases.

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

FD is rated higher. FD averages 4.6 out of 5 from 32 ratings, while TfxReverb averages 4.5 from 8 ratings.

### Do FD or TfxReverb have ads?

Neither FD nor TfxReverb shows ads.

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

FD ships an update every 4 months, and TfxReverb every 10 months. Most recently, FD was updated on October 24, 2026 and TfxReverb on October 19, 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.*