Distance to Sound 4+

Version 1.0

Douglas J Farmer

Designed for iPhone

    • 5.0 • 2 Ratings
    • $0.99

iPhone Screenshots


Using the speed of sound to estimate distance.

DTS lets you estimate the distance between an event that you can see (a firework exploding, a bolt of lightning flashing across the sky or a rocket taking off) and your current location. It uses the time it takes for the sound created by the event, adjusted for the temperature of the surrounding air (a setting which you can easily adjust), to estimate the distance between you and the event.

Using Distance to Sound is about as easy as it gets.

- Wait for a flash of light created by the event, then quickly press the center button

- Wait for the sound of the event to reach you.

- Quickly press the button again.

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings

Easton Elm. ,

Great app!

I love this app. Great for seeing how far fireworks are on the fourth of July. Although one thing i would like to see added is the click radius to start the timer being larger because i miss the button sometimes watching for fireworks.

CAPFlyingFun ,

Awesome little app!

Good app with simple controls that don't take a manual or programming degree to understand how to operate it:)

App Privacy

The developer, Douglas J Farmer, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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