# SpeedAir - Speed of Sound — Calculator for Live Sound

> Calculator for Live Sound (iPhone/iPad app by Marcus Painter.)

- Source: https://appshunter.io/ios/app/speedair-speed-of-sound/id6480329550 (this page in markdown: same URL + `.md`)
- Developer: [Marcus Painter](https://appshunter.io/developer/998530071)
- Category: Utilities
- Price: $4.99 with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: French (France), German (Germany), European Spanish, Italian
- Released: 2024-04-07
- Data updated: 2026-07-18
- User reviews in markdown: https://appshunter.io/ios/app/speedair-speed-of-sound/id6480329550/reviews.md

## What is SpeedAir?

Speed of sound calculations for live sound engineers.

Now with metric or US units (meters or feet).
Temperature in Celsius or Fahrenheit.

The Speed of Sound
Calculated using the temperature, humidity and pressure.

Delay Time and SPL
The time taken to travel a given distance and the drop in SPL with distance.

Frequency Attenuation
The amount attenuated by each frequency band depends on temperature, humidity, and pressure. Only frequencies above 2kHz are significantly affected. The attenuation in dB takes into account the distance.

Wavelength
Calculates the full, half and quarter wavelengths for a given frequency. This is useful when designing sub arrays.

Period
The period for a given frequency for full, half and quarter periods.

Make a Donation
Support further development by making an optional small (or large) donation. Thanks!

## Pricing and in-app purchases

Base price: $4.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Medium Tip | $2.99 | one-time |
| Small Tip | $0.99 | one-time |
| Large Tip | $4.99 | one-time |



## Version history (last 5 releases)

### 1.2.0 — 2025-05-06

- Bug fixes

### 1.1.5 — 2024-11-07

- Analytics

### 1.1.4 — 2024-10-30

• Improved Settings UI - Metric and US Unit picker.

### 1.1.3 — 2024-10-22

• Spanish language
• Italian language

### 1.1.2 — 2024-10-21

• New App App Store video

## Apps similar to SpeedAir

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Speed of Sound Calculator](https://appshunter.io/ios/app/speed-of-sound-calculator/id1409336102) | 3.0 (2) | $2.99 | Utilities |
| [Wavelength Calculator](https://appshunter.io/ios/app/wavelength-calculator/id1413070800) | 2.6 (5) | $2.99 | Utilities |
| [MeasureMate](https://appshunter.io/ios/app/measuremate/id6449699394) | — | Free | Utilities |
| [Omni Sub](https://appshunter.io/ios/app/omni-sub/id1524175030) | 3.7 (3) | $19.99 | Utilities |
| [E.A.R.](https://appshunter.io/ios/app/ear/id6746743841) | — | Free | Utilities |
| [WaveCalc - sound calculator](https://appshunter.io/ios/app/wavecalc-sound-calculator/id1554658517) | — | Free | Utilities |

## More apps by Marcus Painter

- [Tracebook - Speaker Reference](https://appshunter.io/ios/app/tracebook-speaker-reference/id6474818065)
- [Speed of Sound](https://appshunter.io/ios/app/speed-of-sound/id6476942150)

All apps by Marcus Painter: https://appshunter.io/developer/998530071

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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 2026-07-18.*