# Doppler Effect Calculator — Doppler, dB & Sound Tools

> Physics calculator for Doppler effect frequency calculations. (iPhone/iPad app by Nitrio.)

- Source: https://appshunter.io/ios/app/doppler-effect-calculator/id1410084954 (this page in markdown: same URL + `.md`)
- Developer: [Nitrio](https://appshunter.io/developer/321121189)
- Category: Utilities, Productivity
- Price: $2.99
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 1 MB
- Languages: German (Germany), Japanese, French (France), Chinese (Simplified, China), Chinese (Traditional, Taiwan), American English, Brazilian Portuguese, European Spanish, Korean
- Released: 2018-07-30
- Data updated: 2026-08-22
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/doppler-effect-calculator/id1410084954/reviews.md

## What is Doppler Effect Calculator?

Doppler Effect Calc is a practical physics and audio calculator designed for students, teachers, engineers, sound designers, and anyone working with waves, frequency, sound level, and distance-based attenuation. The app brings together essential acoustic calculation tools in one clean, fast, and easy-to-use interface, helping you solve common sound and wave problems without manual formulas or complicated spreadsheets.

Calculate Doppler effect frequency shifts when a sound source or observer is moving. Enter the original frequency, source speed, observer speed, and speed of sound to quickly estimate the perceived frequency. This is useful for physics learning, classroom demonstrations, audio experiments, vehicle sound analysis, and understanding real-world wave behavior.

The app also includes decibel calculation tools for working with sound intensity and sound pressure levels. Whether you are comparing level changes, checking dB differences, or learning how logarithmic sound measurement works, Doppler Effect Calc helps make the numbers easier to understand.

With the distance attenuation calculator, you can estimate how sound level changes as distance increases or decreases. This is especially helpful for acoustic planning, speaker placement, field measurements, educational examples, and general sound propagation study.

Doppler Effect Calc is built for quick, focused calculations. The interface keeps inputs clear, results readable, and formulas easy to reference. A calculation history lets you review previous results, compare values, and avoid repeating work. Built-in reference and information sections provide useful context for the formulas and concepts behind each calculator.

Key features include:
• Doppler effect frequency calculator
• Decibel and sound level tools
• Distance attenuation calculator
• Calculation history for reviewing previous results
• Clear input fields and readable output
• Helpful reference information for physics and acoustics
• Support for multiple languages
• Clean design for study, work, and quick everyday use

Whether you are studying wave physics, teaching acoustics, analyzing sound behavior, or simply need a reliable frequency and dB calculator, Doppler Effect Calc gives you a convenient toolkit for fast and accurate sound-related calculations.

Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.

## Key features

- Instant calculations
- Copyable results
- Reference formulas included
- Supports 16 decimal places
- Multiple unit support
- Ad-free and private

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/doppler-effect-calculator/id1410084954/reviews.md

### 1/5 — Useless in real time

*2022-08-23*

I thought I was buying an app that would allow me to see the speed of a passing emitter: nope! Useless to me. My bad.

## Frequently asked questions about Doppler Effect Calculator

### What is the Doppler Effect Calculator?

Doppler Effect Calculator is a physics and math tool designed to calculate the change in sound frequency when either the sound source or the observer is moving. It offers instant calculations and includes formulas for reference.

### How much does the Doppler Effect Calculator cost?

The Doppler Effect Calculator is a paid application, priced at $2.99. This one-time purchase grants you access to all its features without any recurring fees.

### Does Doppler Effect Calculator have ads?

No, Doppler Effect Calculator is ad-free. The developer has built the app with privacy in mind and does not include any advertisements.

### What devices does Doppler Effect Calculator support?

Doppler Effect Calculator is compatible with iPhone, iPad, and iPod devices. It is optimized to work seamlessly across these Apple platforms.

### How accurate are the calculations in Doppler Effect Calculator?

The app supports calculations up to 16 decimal places, ensuring a high degree of precision for your frequency calculations. It also supports various units for each input.

### When was Doppler Effect Calculator last updated?

The latest version of Doppler Effect Calculator is 1.3, which was last updated on January 30, 2026. This indicates ongoing support and potential for future improvements.

### What is the age rating for Doppler Effect Calculator?

Doppler Effect Calculator has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger students learning about physics concepts.

### Can I copy results from Doppler Effect Calculator to other apps?

Yes, the results from Doppler Effect Calculator are copyable to other applications. This feature allows for easy integration of calculated frequencies into notes, documents, or other projects.

## Version history (last 5 releases)

### 1.5 — 2026-06-27

- Optimized for the latest devices.
- Fixed minor bugs.
- Improved and redesigned the UI.

### 1.3 — 2026-01-30

- Updated for the newest devices.
- Minor bugs fixed.

### 1.2 — 2024-01-10

- Updated for the newest devices.
- Minor UI update.
- Minor bugs fixed.

### 1.1 — 2020-11-02

- Update for Newest Devices
- Bug Fixed

### 1.0 — 2018-07-21

No release notes.

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All apps by Nitrio: https://appshunter.io/developer/321121189

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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 2026-08-22.*