# Tails - Dual Reverb — by Unfiltered Audio and BT

> Harmonic reverb app with dual buffers, threshold swapping, and auto-ducking. (iPhone/iPad app by Unfiltered Audio.)

- Source: https://appshunter.io/ios/app/tails-dual-reverb/id6444164617 (this page in markdown: same URL + `.md`)
- Developer: [Unfiltered Audio](https://appshunter.io/developer/1638381375)
- Category: Music
- Price: $9.99
- Rating: 4.90/5 from 14 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 16 MB
- Released: 2022-11-21
- Data updated: 2026-08-22
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/tails-dual-reverb/id6444164617/reviews.md

## What is Tails?

Unfiltered Audio's Tails is now available on iOS as a Standalone app or AUv3 plugin!

Unfiltered Audio joined forces with electronic music superstar BT to create Tails, the world's most harmonic reverb.

Tails utilizes a novel double-buffered technology to create two separate reverbs in parallel. The twist comes with special threshold swapping: Whenever Tails detects a major change in amplitude or tone, it can smoothly swap between the two reverbs. Additionally, Tails can auto-duck on its inputs and outputs.

This keeps your reverb as clean as possible. With auto-ducking on attacks, you can keep the metallic noise of percussive hits out of your reverbs. Alternatively, you can keep passing tones and blue notes out of your melodic echoes so that your reverb is free of dissonance.

Even without its innovative ducking and swapping, Tails is the most flexible reverb in your arsenal. Two of Unfiltered Audio's classic BYOME reverb algorithms (Renoun and Deep) are available with a Spatial mode inspired by Silo and a brand new Shimmer mode designed to BT's exacting specifications. In true Unfiltered Audio fashion, a global Sample Rate knob affects the sampling rate of the entire DSP algorithm, stretching your reverb tails out into crispy, lo-fi oblivion.

Finally, Tails is built to be performed. Your MIDI keyboard's Pitch and Mod wheels can be assigned quickly to a selection of key parameters, while Note messages can be used to manually duck or mute the reverb.

As an AUv3 plugin, Tails has been tested to work perfectly with Garageband, Drambo, AUM, Cubasis, Beatmaker, Nanostudio, apeMatrix, Loopy Pro, and more! Additionally, with its clear layout and smart resizing, Tails can be used on tablets and phones with ease.

(Note for Drambo users: Drambo does not yet have automatic Plugin Delay Compensation for managing plugins with latency. As a result, tracks with Tails will not line up properly with other tracks. An upcoming patch for Drambo will add this feature in.)

## Key features

- Dual reverb buffers
- Threshold swapping
- Auto-ducking
- Classic and new reverb algorithms
- Spatial and Shimmer modes
- Global Sample Rate control
- MIDI performance control

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/tails-dual-reverb/id6444164617/reviews.md

### 5/5 — Mooare

*2024-05-07*

We need more UA on this platform.

Tails is really good if you are looking for reverb in your app list.

More, we need more Unfiltered Audio.

### 4/5 — Very intense reverb!

*2022-11-28*

Of course you can dial down and go subtle, but i think it shines when really pleasant reverb glosses over a mix. Hails

## Frequently asked questions about Tails

### What is Tails - Dual Reverb?

Tails is a music app that creates harmonic reverb using a unique dual-buffered technology. It allows for smooth swapping between two separate reverbs and features auto-ducking to keep your audio clean.

### What makes Tails - Dual Reverb's reverb unique?

Its novel double-buffered technology creates two distinct reverbs in parallel. A special threshold swapping feature allows it to smoothly transition between these two reverbs based on amplitude or tone changes, ensuring a clean and harmonic sound.

### Can Tails - Dual Reverb be used with other music apps?

Yes, Tails is available as a standalone app or an AUv3 plugin. It has been tested to work with popular iOS DAWs like Garageband, Drambo, AUM, Cubasis, and more.

### How much does Tails - Dual Reverb cost?

Tails - Dual Reverb is a paid application, priced at $4.99. There are no in-app purchases or subscriptions required.

### What are the performance features of Tails - Dual Reverb?

The app is built for performance, allowing MIDI keyboard Pitch and Mod wheels to be assigned to key parameters. Note messages can also be used to manually duck or mute the reverb.

### What devices does Tails - Dual Reverb support?

Tails - Dual Reverb is compatible with iPhone, iPad, and iPod. Its clear layout and smart resizing make it usable on both phones and tablets.

### How often is Tails - Dual Reverb updated?

The app was last updated on March 11, 2025, to version 1.2.0. This indicates active development and support from the developers.

### Is Tails - Dual Reverb suitable for beginners?

While it offers advanced features, the app's clear layout and smart resizing make it accessible on various devices. Its core functionality provides a unique reverb experience that can be explored by producers of all levels.

## Version history (last 3 releases)

### 1.2.0 — 2025-03-11

1.2.0:
Tails now has import and export of User Presets!
- Exporting will create a .zip file of all User Presets. You can save this .zip file to Files or iCloud for easily transferring presets saved on iOS back to your other computers.
- Presets can be imported as single .uap files or as a .zip. Importing a .zip will extract the contents of the file directly to your User Presets folder.

Additional patches:
- The Reverb Swap Speed parameter now responds more intelligently when typing in values. Typing a value like "0.6" will assume seconds, while a larger value like "600" will assume milliseconds.
- Versions 1.07 through 1.1.0 were not released on iOS, as they did not feature any changes/fixes for iOS.

### 1.0.6 — 2022-12-15

-Stabilized latency reported.
-Added the ability to choose between Full Latency, Low Latency, and No Latency. This will affect the sound of the ducking section, so we have kept Full Latency as the default to maintain consistency with the factory presets.

### 1.0.5 — 2022-11-21

No release notes.

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## More apps by Unfiltered Audio

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- [Silo - Granulator and Reverb](https://appshunter.io/ios/app/silo-granulator-and-reverb/id6444164740)
- [Battalion - Drum Machine](https://appshunter.io/ios/app/battalion-drum-machine/id6743767101)

All apps by Unfiltered Audio: https://appshunter.io/developer/1638381375

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*