Decibel calculator is made and published by ZPP. AppBrain is an independent app data site and isn't affiliated with ZPP. The app name, icon, screenshots and description belong to ZPP and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- December 14, 2025
Rankings
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Competitors
Similar apps and more from ZPPAlternatives to Decibel calculator
Releases
Updates seen on the App Store- Version
- 2.2.1
- Launched
- January 2012
No changelog data
User feedback
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Technology
Found in the app by AppBrain- Price
- $0.99
- App size
- 1.43 MB
- Content rating
- Everyone
Technologies used by Decibel calculator
About the app and developer
About Decibel calculator
Decibel calculator is an utilities app developed by ZPP.
User Ratings
The app has no ratings yet.
App Information
Decibel calculator costs $0.99. The app size is 1.43 MB. The latest version available is 2.2.1. The last update was on December 14, 2025.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since January 2012.
Developer information for ZPP
Address:
Store listing
By ZPP, from the App Store
Screenshots by ZPP, from the the App Store listing
Description by ZPP Written by the developer, not by AppBrain. Click to read.
Sound levels are usually expressed in a logarithmic scale called the decibels (dB). The decibels cannot be added or subtracted directly.
Each operation between decibel values requires to convert the sound level back to a linear scale using an antilog function.
The dB calculator app allows the direct addition or subtraction of dB levels. The app uses the following formula:
A + B = 10*LOG10(10^(A/10) + 10^(B/10))
For instance, 5dB + 5dB returns 8dB (3dB is added when doubling the sound level) or 1dB + 2dB = 4.5dB.
Each operation between decibel values requires to convert the sound level back to a linear scale using an antilog function.
The dB calculator app allows the direct addition or subtraction of dB levels. The app uses the following formula:
A + B = 10*LOG10(10^(A/10) + 10^(B/10))
For instance, 5dB + 5dB returns 8dB (3dB is added when doubling the sound level) or 1dB + 2dB = 4.5dB.