MusicMath vs DelayTool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MusicMath
This musical tool offers a comprehensive suite of calculators for audio professionals and musicians. It includes converters for timecode, tempo, note frequencies, and sample lengths, alongside a tap tempo metronome and detailed note-to-frequency tables with customizable temperaments.
- Timecode calculator with frame format management
- Tap tempo with metronome
- Tempo to delay (milliseconds/hertz) converter
- Note to frequency converter with temperaments
- Sample length converter
- Frequency to note converter
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"MusicMath" is a musical tool that includes a timecode calculator, a tap tempo, a tempo to delay in milliseconds and hertz converter, a note to frequency table converter, a sample length converter, a tempo change converter, and a frequency to note converter. Timecode calculator: • Add and subtract timecodes or frames • Convert a number of frames to timecodes • Simultaneously convert the number of frames and the timecode • Conversion of timecode when changing the frame format • Managing frame formats 23.976 fps, 24 fps, 25 fps, 29.94 fps, 29.97 fps, 29.97 fps drop frame, 30 fps, 50 fps, 59.94 fps, 60 fps • Real-time display for formats 23.976 fps, 29.94 fps, 29.97 fps, 59.94 fps • Unlimited history calculations • History can be saved and exported to other applications Tap tempo: • Improved algorithm for impresize tap • Metronome • Transfer calculated tempo to other MusicMath tools Tempo to delay table: • Convert tempo to milliseconds and hertz • Convert for whole-note, half-note, quarter-note, eighth-note, sixteenth-note, thirty-note, and sixty-fourth-note for dotted notes and triplets Note to frequency table: • Convert MIDI notes to frequencies • Adjustable diapason and root note • One hundred selectable temperaments • Visualization of intervals in cents for each temperament • Taking into account the temperament for the calculation of frequencies • Plays piano sound when notes are touched Sample length converter: • Convert length between samples, milliseconds, and tempo Tempo change converter: • Calculates tempo change by ratio (%) and transposition Frequency to note converter: • Convert a frequency to the closest note and the cents needed • Plays the frequency
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!
Screenshots
Verdict
The clearest difference is rating: DelayTool at 5.0 against MusicMath's 4.3. DelayTool also leads on price ($0.99 vs $9.99). MusicMath's advantage is update cadence (every 7 months vs every 42 months) and device support (4 vs 2). On review sentiment, ratings volume, ads and in-app purchases 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
MusicMath costs $9.99 and DelayTool $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 4.3. Both are backed by a comparable volume of ratings — 12 and 5 respectively. Written reviews complicate that: 73% of MusicMath's written reviews are positive against 67% of DelayTool's, so the app with the better star average is not the one people write more warmly about.
MusicMath ships an update every 7 months, DelayTool every 42 months. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.
| Parameter | MusicMath | DelayTool |
|---|---|---|
| Price | $9.99 | $0.99 — better |
| Rating | 4.3 (12 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 73.3% of reviews — better | 66.7% of reviews |
| Number of ratings | 12 — better | 5 |
| Update frequency | Every 7 months — better | Every 42 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 12 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Laurent Colson | Joel Perry |
Customer experience
MusicMath
DelayTool
In-app purchases
MusicMath
No in-app purchases
DelayTool
No in-app purchases









