DelayTool vs Tempus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DelayTool
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.
- BPM calculator
- Tempo input and tap tempo
- Automatic table updates
- Calculates milliseconds and Hertz
- Supports common musical subdivisions
- Precise delay and oscillator setup
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DelayTool is a simple BPM calculator for producers, engineers, and musicians. Enter or tap the tempo and watch the table of values update automagically. For each common musical subdivision, you will see times (in milliseconds and Hertz) for the current tempo. Just what you need to precisely set up delays and oscillators!
Tempus
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.
- 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
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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
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | DelayTool | Tempus |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (5 ratings) — better | 4.6 (9 ratings) |
| Positive reviews | 66.7% of reviews | 83.3% of reviews — better |
| Number of ratings | 5 | 9 — better |
| Update frequency | Every 42 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Joel Perry | Marcos Kohler |
Customer experience
DelayTool
Tempus
In-app purchases
DelayTool
No in-app purchases
Tempus
No in-app purchases
