Soundbeam

Name: Soundbeam
Price: 4.99 USD
Author: PZ Mobile Limited

By: PZ Mobile Limited

Music

Features & Capabilities

Soundbeam is a real-time audio analyzer (RTA) that lets you see what your everyday sounds look like. Plug in a microphone, electric guitar, or any hi-Z device to the mini-jack input, or use the built-in mic, and watch accurate measurements appear as a classic oscilloscope-style display. It also renders a high-resolution FFT-based spectral visualization for precise analysis. The nostalgic, old-school interface is paired with modern signal processing to deliver a fresh way to experience sound.

Key features include spectrum and waveform views, recording, and intuitive gesture controls to adjust frequency range and intensity. Tweak visualization with dedicated controls, reset views with a double tap, and enjoy quick access by pinching and sliding on the screen. Whether you’re a musician, sound designer, or curious explorer, Soundbeam reveals the invisible physics of sound in real time.

User Growth & Download Statistics

App Music & Audio

By:

PZ Mobile Limited

Version:

1.9 Last updated: 2022-10-07

Version code:

852640448

Creation date:

2012-01-19

Compatible devices:

Size:

7.21MB

Price:

4.99

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-05

Compare stats and ranking:

Ranking

# 1,298,210 ▼ 1,017,829

For Developers

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Contact the developer

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Developed by:

PZ Mobile Limited

Apple Apps Store

https://apps.apple.com/ro/app/soundbeam/id494982357

Website:

https://www.evilwindowdog.com/soundbeam/

User Reviews

Soundbeam is praised for its powerful real-time audio analysis, great visuals, and external-input versatility, plus affordable pricing. Main drawbacks are limited oscilloscope capabilities (no scale control), short recording windows, mic/HPF frequency limits, and lack of updates and device support, with some stability issues.

Pros

Powerful and robust audio-analysis tool (oscilloscope and spectrum analyzer) with clear time-domain and frequency-domain views.
Excellent UI/UX with a visually appealing, easy-to-use interface.
Works with external audio sources and devices (USB piano, microphones, audio interfaces) for real-world measurements.
Recording capability to capture and save audio (and video) for tutorials or demonstrations.
Great value for the price and widely regarded as a top-scoring scope/RTA app.

Cons

Not a true oscilloscope: cannot adjust scan rate; limited control over sampling.
Short recording length (about 14–15 seconds) and desire for longer recordings.
Microphone frequency-range limitations and iPhone HPF (~10 kHz) can limit certain measurements.
Not updated recently and lacks iPad universal support; feels outdated on newer iOS devices.
Occasional instability/resets reported by users.

Recent reviews

Other than the processor noise that seems to sneak in at 7.7 and 15k4 hz, absolutely perfect. ( ok, there’s a ton more things it could do but sometimes this is all you need!)

by gf*****, 2026-01-19

Very powerful and robust little app! A fascinating, teaching aid for both technical and non-Technical applications! Extremely interesting!!!

by EX*****, 2025-02-01

This is a delightful app that functions as an oscilloscope for audio frequencies. I used an audio frequency generator (Function Generator Pro) on one device and plugged it into my iPhone via an audio cable and was able to view sine, square and triangle waveforms as if I were using an actual physical oscilloscope. I also built an electronic circuit to generate a sine wave and fed it into my iPhone via a Scarlett audio interface and that also worked wonderfully, showing the sine wave and frequency! The iPhone has a high-pass filter that cuts off anything over 10KHz, but for my projects that frequency was plenty high enough. Running an audio app and Soundbeam on my iPhone simultaneously showed me the waveform and the FFT-style spectrum analysis—the audio came out the speaker and back in via the microphone. What a great and inexpensive way to help understand how sound waves work! Enhancement request: let me zoom in horizontally while in waveform mode, and display the time scale.