# Reverb & Delay Calculator — Music production helper

> Calculates optimal reverb and delay settings for music production based on track tempo. (iPhone/iPad app by Quentin Hayot.)

- Source: https://appshunter.io/ios/app/reverb-and-delay-calculator/id1633634980 (this page in markdown: same URL + `.md`)
- Developer: [Quentin Hayot](https://appshunter.io/developer/362648866)
- Category: Music, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 12 MB
- Languages: American English
- Released: 2022-07-30
- Data updated: 2026-08-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/reverb-and-delay-calculator/id1633634980/reviews.md

## What is Reverb & Delay Calculator?

Quickly find out the best values for your reverbs and delays!
Just dial in your track's tempo and the app will compute optimal values for different reverb and delay sizes.

Computed values:
- Reverb pre-delay
- Reverb decay
- Reverb total length
- Delay length (note)
- Delay length (dotted)
- Delay length (triplet)





EULA:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Tempo-based calculations
- Reverb pre-delay computation
- Reverb decay calculation
- Reverb total length
- Delay length (note)
- Delay length (dotted)
- Delay length (triplet)

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Friends | Free | one-time |
| Pro Unlimited | $4.99 | one-time |


## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/reverb-and-delay-calculator/id1633634980/reviews.md

### 5/5 — Totally useful and handy

*2024-04-24*

I never thought that having a reverb and delay calculator would be very handy as a music producer. This app has been helpful when tweaking my reverb times when playing with rumbles and makes my workflow a bit easier and accurate!

### 5/5 — Super helpful and easy to use

*2024-04-18*

I use this app almost all the time when I produce music and since it’s on my phone it’s much easier to access while not getting in the way of my work. Would definitely recommend to all music producers and music/sound enthusiasts 👌🏽

### 5/5 — A really good app

*2024-04-18*

Saves everyone the trouble of calculating with a pocket calculator

### 5/5 — Essential tool for pro results

*2024-04-17*

Great tool that will be getting lots of use in the studio. Simple and easy to use.

### 4/5 — Nice

*2023-06-18*

Great and useful little app. One comment, I think it says ‘bars’ when it should say ‘beats’. Might be wrong though!

**Developer response:** Hi,
Thanks for trying my app, I'm glad it's useful to you.
The app is correct it's bars (4 beats).

### 5/5 — Indispensable pour la MAO

*2022-08-01*

Je m'en sers pour tous mes projets musicaux pour calculer les paramètres de mes effets en fonction du tempo de mes tracks. Nickel !

## Frequently asked questions about Reverb & Delay Calculator

### What are the optimal values calculated by Reverb & Delay Calculator?

Reverb & Delay Calculator computes optimal values for reverb pre-delay, reverb decay, reverb total length, and delay length in notes, dotted notes, and triplets, all based on your track's tempo.

### Does Reverb & Delay Calculator have ads?

Yes, Reverb & Delay Calculator contains advertisements. This allows the app to remain free for users while offering its helpful features.

### What is the price of Reverb & Delay Calculator?

Reverb & Delay Calculator is free to download and use. It also offers a 'Pro Monthly' subscription for $0.99/P1M, which may remove ads or unlock additional features.

### What devices is Reverb & Delay Calculator available on?

Reverb & Delay Calculator is available for iPhone and iPod devices. It is designed for mobile use within the Apple ecosystem.

### How often is Reverb & Delay Calculator updated?

The latest version of Reverb & Delay Calculator is 1.1.3, last updated on April 16, 2025. This indicates regular updates to improve functionality and performance.

### What is the age rating for Reverb & Delay Calculator?

Reverb & Delay Calculator has an age rating of 4+. This means it is suitable for users of all ages, with no mature content.

### What do users like about Reverb & Delay Calculator?

Based on its 5.0-star rating from 1 review, users likely appreciate the app's ability to quickly provide precise calculations for reverb and delay settings, streamlining the music production process.

### Can I use Reverb & Delay Calculator offline?

The provided data does not specify offline functionality for Reverb & Delay Calculator. However, as a calculation tool, it is likely to function without an internet connection once installed.

## Version history (last 5 releases)

### 1.1.3 — 2025-04-16

1.1.3:
- Bug fixes

1.1.2:
- Bug fixes

1.1.1:
- Fixed a bug that would prevent values to update when changing the BPM

1.1.0:
- Added more Reverb and Delay divisions. Note that the "Cathedral" reverb division is now 8 bars (was 4 bars 
before)
- Added visual feedback when copying a value
- Mac users can now easily type in the BPM with their keyboard
- BUGFIX: On Mac, the value wasn't copied to the clipboard, despite the app saying it was.

### 1.1.2 — 2024-01-19

1.1.2:
- Bug fixes

1.1.1:
- Fixed a bug that would prevent values to update when changing the BPM

1.1.0:
- Added more Reverb and Delay divisions. Note that the "Cathedral" reverb division is now 8 bars (was 4 bars 
before)
- Added visual feedback when copying a value
- Mac users can now easily type in the BPM with their keyboard
- BUGFIX: On Mac, the value wasn't copied to the clipboard, despite the app saying it was.

### 1.1.1 — 2023-06-05

1.1.1:
- Fixed a bug that would prevent values to update when changing the BPM

1.1.0:
- Added more Reverb and Delay divisions. Note that the "Cathedral" reverb division is now 8 bars (was 4 bars 
before)
- Added visual feedback when copying a value
- Mac users can now easily type in the BPM with their keyboard
- BUGFIX: On Mac, the value wasn't copied to the clipboard, despite the app saying it was.

### 1.1.0 — 2023-06-02

- Added more Reverb and Delay divisions. Note that the "Cathedral" reverb division is now 8 bars (was 4 bars 
before)
- Added visual feedback when copying a value
- Mac users can now easily type in the BPM with their keyboard
- BUGFIX: On Mac, the value wasn't copied to the clipboard, despite the app saying it was.

### 1.0.2 — 2022-08-21

- Bugfixes

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## More apps by Quentin Hayot

- [BPM Detector: Live Tempo](https://appshunter.io/ios/app/bpm-detector-live-tempo/id1566588809)
- [SnapGlam - Makeup Tutorials](https://appshunter.io/ios/app/snapglam-makeup-tutorials/id6744568841)

All apps by Quentin Hayot: https://appshunter.io/developer/362648866

## Related topics

[reverb calculator](https://appshunter.io/ios/topics/reverb-calculator) · [delay calculator](https://appshunter.io/ios/topics/delay-calculator) · [audio engineering](https://appshunter.io/ios/topics/audio-engineering) · [delay](https://appshunter.io/ios/topics/delay) · [simple reverb calculator](https://appshunter.io/ios/topics/simple-reverb-calculator) · [slowed and reverb app](https://appshunter.io/ios/topics/slowed-and-reverb-app) · [marching band sound delay](https://appshunter.io/ios/topics/marching-band-sound-delay) · [delay app](https://appshunter.io/ios/topics/delay-app)

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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 2026-08-24.*