Spectrum logo

Spectrum for Android

Developer's Description

Spectrum is a room frequency response app designed to be easy to use while packing the features that are useful for audio and HiFi enthusiasts. While it isn't going to replace an ECM8000, it is at least portable, free and can double as a sound meter.


View real-time amplitude and frequency data from the phone

Store last recorded amp/freq into the built-in database

Built-in 5kHz, 8kHz tones and 20-20kHz sweep

Fine control over graph update speed.

Open source


You will need to grant microphone access for this app to work. This app is completely offline so all data remains on your device.

Full Specifications

What's new in version 1.2.0


Release July 29, 2020
Date Added July 29, 2020
Version 1.2.0

Operating Systems

Operating Systems Android
Additional Requirements Requires Android 5.0 and up


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