# FD vs RollBud Trance Gate & Roll FX

The clearest difference is review sentiment: RollBud Trance Gate & Roll FX at 100% against FD's 67%. RollBud Trance Gate & Roll FX also leads on rating (5.0 vs 4.6) and update cadence (every 2 months vs every 4 months). FD's advantage is ratings volume (32 vs 2) and price ($4.99 vs $5.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

FD costs $4.99 and RollBud Trance Gate & Roll FX $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RollBud Trance Gate & Roll FX holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: FD has 32 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 67% of FD's written reviews are positive against 100% of RollBud Trance Gate & Roll FX's.

FD ships an update every 4 months, RollBud Trance Gate & Roll FX every 2 months. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | FD | RollBud Trance Gate & Roll FX |
| --- | --- | --- |
| Price | **$4.99** | $5.99 |
| Rating | [4.6 (32 ratings)](https://appshunter.io/ios/app/fd-1-filter-delay/id1448696965/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rollbud-trance-gate-and-roll-fx/id6743325110/reviews)** |
| Number of ratings | **32** | 2 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 61 MB | 15 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Cem Olcay](https://appshunter.io/developer/523633853) |

## 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


### RollBud Trance Gate & Roll FX

[App page](https://appshunter.io/ios/app/rollbud-trance-gate-and-roll-fx/id6743325110)

This app provides creative audio effects for rhythmic sound shaping, including stutters, rolls, and trance gate styles. It features an expressive XY-pad with MIDI control and recording capabilities, and integrates seamlessly as an AUv3 FX plugin.

**Highlights:** Rhythmic sound shaping, Stutter, roll, and slip effects, Trance gate-style effects, Expressive XY-pad control, MIDI control and recording, AUv3 FX plugin integration

**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 RollBud Trance Gate & Roll FX free?

RollBud Trance Gate & Roll FX costs $5.99, with no in-app purchases.

### Which has better reviews, FD or RollBud Trance Gate & Roll FX?

RollBud Trance Gate & Roll FX is rated higher. FD averages 4.6 out of 5 from 32 ratings, while RollBud Trance Gate & Roll FX averages 5.0 from 2 ratings.

### Do FD or RollBud Trance Gate & Roll FX have ads?

Neither FD nor RollBud Trance Gate & Roll FX shows ads.

### Which is updated more often, FD or RollBud Trance Gate & Roll FX?

FD ships an update every 4 months, and RollBud Trance Gate & Roll FX every 2 months. Most recently, FD was updated on October 25, 2026 and RollBud Trance Gate & Roll FX on October 18, 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.*