# Tempus - Delay Calculator — Delay & Re-Pitch Calculator

> Music production tool for calculating delay times and sample re-pitching. (iPhone/iPad app by Marcos Kohler.)

- Source: https://appshunter.io/ios/app/tempus-delay-calculator/id1488364362 (this page in markdown: same URL + `.md`)
- Developer: [Marcos Kohler](https://appshunter.io/developer/1024379665)
- Category: Music, Utilities, Music
- Price: Free
- Rating: 5.00/5 from 8 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 8 MB
- Languages: English
- Released: 2019-11-22
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/tempus-delay-calculator/id1488364362/reviews.md

## What is Tempus?

Tempus is a tool for calculating Delay Times and sample Re-Pitch amounts / BPMs!

- Tap-tempo Metronome with the ability to specify the # of beats
- View Delay Times & preview what each Delay sounds like
- Calculate sample Re-Pitch amounts / BPMs when changing the BPM in your DAW & using Re-Pitch Warp modes

## Key features

- Tap-tempo metronome
- Specify beat count for metronome
- View and preview delay times
- Calculate sample re-pitch amounts
- Calculate BPM changes
- Supports Re-Pitch Warp modes

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/tempus-delay-calculator/id1488364362/reviews.md

### 1/5 — Broke

*2026-02-04*

I'd manually type in the bpm and click apply but the delay times never change

### 5/5 — Great app but…

*2025-05-29*

Love this app totally amazing and does what I need it to do. However, in the recent update on older iPhones the tempo is cut off because I guess the older phones screen is smaller? It just shows “12…bpm” could be 125 could be 122. It may seem small but it’s annoying. Thanks!

### 5/5 — Perfect

*2024-03-13*

This app is exactly what I was looking for. Beautifully designed, intuitive UI, easy to use.

I love that the sounds give me a preview of the delay times/types outside of my effects setup and recording workflow, as it negates a lot of that evil time vampire called ‘Fiddling.’ This app helps me to focus on the fit of the delay rather than guessing it.

I was concerned about Apple’s data collection warning, but when you click on the details, the developer says they do not collect user data, so – perfect!

This is an app every music maker and engineer should have on their phone and in their pocket if they’re dealing with delays and reverbs.

### 5/5 — Beautifully Designed BPM Calculator, allows for complex calculations

*2024-01-17*

I really love the look and functionality of this calculator. When you get functionality, as well as design workflow, and then mix that together with it being aesthetically beautiful! I would say you have a 5/5 App! 

I would LOVE to see this developer use the code he has to build some effects for us musicians, who are now able to be “SNOBS” lol when it comes to choosing the FX apps we use to play live and what we use in our “studio”  
(Not sure if I can call my 2 iPad Pro’s, M2 Mac Book, an M-Audio interface, a Shure Beta SM 58… a Shure SM57 and an AKG-414 mics, a few Guitars Les Paul ‘57 re-issue, Kramer SM1, an Ibanez (active) pickup bass, Martin E series, and an Alveraz Studio guitar, and an Alessis Drum set a studio… However it sure is a BLAST to use all the AMAZING apps that guys like this developer make!!!!

I would LOVE to see something from this developer, such as delays, reverbs, pitch shifters and so on!!! The way he laid things out may just be a start of a LIFETIME of people using his apps! 

Oh if so … please let me be of help to beta test (don’t care to pay for the app) that would be MY PLEASURE!!!

### 4/5 — Resize for smaller iPhone please

*2022-05-12, version 1.7*

I recently changed my device to a mini iPhone and the app doesn’t resize

### 5/5 — Great app to shape delays

*2021-08-03, version 1.7*

I’ve been using this app for a while as I find it helpful to adjust the time of delays according to song tempo, however I recently switched to iPhone 12 mini with 5.4” screen which’s not supported. Now I can’t adjust the tempo time as it’s gone behind the notch. Hope this will be fixed. Cheers

## Frequently asked questions about Tempus

### What is Tempus used for?

Tempus is a tool designed for musicians and producers to calculate delay times and sample re-pitch amounts. It also includes a tap-tempo metronome with customizable beat counts.

### Does Tempus have ads?

No, Tempus is ad-free, allowing for an uninterrupted user experience.

### What devices is Tempus available on?

Tempus is available on iPhone, iPad, and iPod devices.

### How often is Tempus updated?

The app was last updated on July 11, 2024, indicating active development and support.

### What is the age rating for Tempus?

Tempus has an age rating of 4+, making it suitable for a wide range of users.

### Can Tempus help with changing BPM in my DAW?

Yes, Tempus can calculate sample re-pitch amounts and BPM changes when you adjust the BPM in your Digital Audio Workstation (DAW).

### What is the user sentiment for Tempus?

Based on its rating of 5.0 stars from 8 ratings, users appear to be highly satisfied with Tempus.

### Is Tempus free to download?

Yes, Tempus is available for free, with no in-app purchases or ads.

## Version history (last 5 releases)

### 1.8 — 2024-07-11

- Added support for new iPad & iPhone Sizes
- Improved Slider response
- Added more Re-Pitch Calculator rows
- Minor UI Changes

### 1.7 — 2020-08-18

- Optimizations

### 1.6 — 2020-07-29

- Fixed detection of iPhone 6+, 6s+, 7+ and 8+

### 1.5 — 2020-07-28

- Louder Metronome
- Fixed detection of iPhone 6+, 6s+, 7+ and 8+
- Minor UI Updates

### 1.4 — 2020-06-04

- Minor UI Changes & Updates

## Apps similar to Tempus

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ddtctmcc-ff](https://appshunter.io/ios/app/ddtctmcc-ff/id6460858922) | 5.0 (5) | Free | Music |
| [iZotope Trash](https://appshunter.io/ios/app/izotope-trash/id6475314304) | 4.2 (14) | Free | Music |
| [Briiks](https://appshunter.io/ios/app/briiks/id6478665135) | 4.8 (17) | Free | Music |
| [3D Chorus](https://appshunter.io/ios/app/3d-chorus/id1610943382) | 5.0 (9) | Free | Music |
| [Mode Circle](https://appshunter.io/ios/app/mode-circle/id6444849284) | 5.0 (3) | Free | Music |

## More apps by Marcos Kohler

- [Collider - For The Analog Rytm](https://appshunter.io/ios/app/collider-for-the-analog-rytm/id1024379666)
- [Oracle - For The Prophet 12](https://appshunter.io/ios/app/oracle-for-the-prophet-12/id1198283877)
- [Manifold - For The Octatrack](https://appshunter.io/ios/app/manifold-for-the-octatrack/id1339233919)
- [TriKey](https://appshunter.io/ios/app/trikey/id1406537477)
- [PolyPhase](https://appshunter.io/ios/app/polyphase/id1440617668)
- [Harmonix](https://appshunter.io/ios/app/harmonix/id1444665934)

All apps by Marcos Kohler: https://appshunter.io/developer/1024379665

## Related topics

[delay calculator](https://appshunter.io/ios/topics/delay-calculator) · [delay calc](https://appshunter.io/ios/topics/delay-calc) · [delayiti](https://appshunter.io/ios/topics/delayiti) · [reverb calculator](https://appshunter.io/ios/topics/reverb-calculator) · [auido delay](https://appshunter.io/ios/topics/auido-delay) · [tempus](https://appshunter.io/ios/topics/tempus)

---

*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 2026-06-01.*