# DelayTool vs Tempus

The clearest difference is price: Tempus at Free against DelayTool's $0.99. Tempus also leads on update cadence (every 5 weeks vs every 42 months) and review sentiment (83% vs 67%). DelayTool's advantage is rating (5.0 vs 4.6). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Tempus is free to download; DelayTool costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DelayTool holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 5 and 9 respectively. Written reviews complicate that: 67% of DelayTool's written reviews are positive against 83% of Tempus's, so the app with the better star average is not the one people write more warmly about.

DelayTool ships an update every 42 months, Tempus every 5 weeks. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | DelayTool | Tempus |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/delaytool-bpm-calculator/id982070192/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/tempus-delay-calculator/id1488364362/reviews) |
| Number of ratings | 5 | **9** |
| Positive reviews | 66.7% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 8 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joel Perry](https://appshunter.io/developer/972887837) | [Marcos Kohler](https://appshunter.io/developer/1024379665) |

## What reviewers say

### DelayTool

[App page](https://appshunter.io/ios/app/delaytool-bpm-calculator/id982070192)

This application helps musicians and sound engineers calculate precise timing values for musical subdivisions. It automatically updates a table of milliseconds and Hertz based on the entered tempo, ideal for setting up delays and oscillators.

**Highlights:** BPM calculator, Tempo input and tap tempo, Automatic table updates, Calculates milliseconds and Hertz, Supports common musical subdivisions, Precise delay and oscillator setup

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Tempus

[App page](https://appshunter.io/ios/app/tempus-delay-calculator/id1488364362)

Calculate delay times and sample re-pitch amounts with a tap-tempo metronome. Preview delay sounds and determine BPM changes for your DAW. This tool helps musicians fine-tune audio effects.

**Highlights:** 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

**In-app purchases:** none


## Frequently asked questions

### Is DelayTool free?

DelayTool costs $0.99, with no in-app purchases.

### Is Tempus free?

Tempus is free to download, with no in-app purchases.

### Which has better reviews, DelayTool or Tempus?

DelayTool is rated higher. DelayTool averages 5.0 out of 5 from 5 ratings, while Tempus averages 4.6 from 9 ratings.

### Do DelayTool or Tempus have ads?

Neither DelayTool nor Tempus shows ads.

### Which is updated more often, DelayTool or Tempus?

DelayTool ships an update every 42 months, and Tempus every 5 weeks. Most recently, DelayTool was updated on October 6, 2026 and Tempus on October 7, 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.*