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Last updated on: 2026-07-13
Android Apps > Tools > Spectroid
Spectroid icon

Spectroid

1.1.2
Carl Reinke
4.57
15,525 reviews
1,000,000+
Downloads
Free

Audio Spectrum Analyzer

Not recently updated β€” last update was on 2022-08-26. This app may no longer be actively maintained.
Spectroid Screenshot 1 of 4
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Spectroid delivers real-time audio spectrum analysis for Android with broad frequency coverage and a responsive spectrum plot. Free and lightweight, it’s backed by a strong 4.58 rating from 15,503 reviews and a large user base. Not ranked in any top lists, it remains a go-to option for quick on-device spectrum analysis, with 1,000,000+ total and 16K downloads in the last 30 days.

Pros & Cons

  • Real-time spectrum analysis across the full frequency range
  • FFT-based approach delivers high-frequency resolution
  • Intuitive pinch-to-zoom on the spectrum plot
  • Free, lightweight APK (~108 KB) with clear dBFS visualization
  • Not ranked in any top lists, which may affect visibility
  • Not a calibrated instrument, limiting professional calibration tasks
  • Limited notes on export/calibration features beyond qualitative spectrum analysis

About Spectroid

Spectroid is a tools app developed by Carl Reinke.

Download Statistics

Spectroid has been downloaded 4.8 million times. In the last 30 days, the app was downloaded 16 thousand times.

User Ratings

Spectroid is rated 4.57 out of 5 stars. The rating is based on 16 thousand ratings.

App Information

Spectroid is FREE to download. The APK download size is 105.47 kB. The latest version available is 1.1.2. The last update was on August 26, 2022.

Technical Requirements

Spectroid requires Android 4.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play September 2014.

Description
Spectroid is a real-time audio spectrum analyzer with reasonable frequency resolution across the the entire frequency spectrum.
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More data about Spectroid

Price Free to download
Total downloads 4.8 million
Recent downloads 16 thousand
Rating 4.57 based on 16 thousand ratings
Ranking Not ranked
Version 1.1.2
APK size 105.5 KB
Number of libraries 0
Designed for Android 4.0+
Suitable for Everyone
Ads NO ads

App Performance Report

Get a detailed PDF report for Spectroid with download trends, rating history, and key performance statistics β€” useful for competitive research or tracking your own app. Learn more

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Spectroid compared with similar apps

Common keywords of similar apps

Spectroid Resolution Power Values Negative Maximum Zoom Plot Discontinuities Spectrum Frequency Audio Analyzer Db Data Device

Keywords missing from this app

Sound Time Level Noise Meter Decibel Display App Real Spl Weighting Fft Measurement High Recording Microphone Levels Frequencies Amplitude Mode Calibration Range Rta Features Scale Peak Devices Test Recent Generator Reference Hz Pro Dba Analysis View Video Screen Leq Fast Low Music Size

More from Carl Reinke

Solitaire Collection icon Solitaire Collection
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Google Play Rating history and histogram

13K
1.1K
610
340
810

Downloads over time

Spectroid has been downloaded 4.8 million times. Over the past 30 days, it averaged 540 downloads per day.

Changelog of Spectroid

Show changelog

Developer information for Carl Reinke

Carl Reinke

android@intoorbit.org

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Comments on Spectroid for Android

β˜…β˜…β˜…β˜…β˜… Aniket Sen Β· Apr 17, 2026
Please add support for selecting different audio inputs (phone mic, system audio, combined input, or external/headphone mic). Also, the graph is always raised due to background noise, please include a baseline/noise floor calibration option, so it stays flat and only shows sounds above the ambient noise. It would also be very helpful to have the ability to record audio along with the graph for later analysis. Overall, it's a really good app.
β˜…β˜…β˜…β˜…β˜… Protik Chanda Β· Nov 17, 2025
Idea for a feature: Please add a feature to the app, so it can load a target FR curve. This can make this app super useful for manually tuning audio systems or room acoustics. For example use Squiggling as a reference for targets like Harman which uses IEM and Headphones. But I guess there might be such targets for Room acoustics and sound systems as well. This simple feature can be really useful
β˜…β˜…β˜…β˜…β˜… Stefan Kuna Β· Jan 25, 2026
I use this to set the RPM of aircraft props. Would be nice if it could be set to display RPM directly, but it's easy enough to calculate Hz = RPM / 60 * number of blades. Great app.
β˜…β˜…β˜…β˜…β˜† AndrewB Β· Oct 31, 2025
Works pretty well at work for finding troubleshooting frequencies in the meeting rooms as our mics and setups constantly change
β˜…β˜…β˜…β˜…β˜† Leo Mihalache Β· Jan 29, 2026
Very useful application. Simple and easy to use. One issue that I have is that the logarithmic scale used is in base 10. It would be nice if there were an option for base 2 logarithmic scale.
β˜…β˜†β˜†β˜†β˜† Joe Β· Feb 25, 2026
it's wonderful, I've never been more intouch with what frequencies can do to a human.
β˜…β˜…β˜†β˜†β˜† Andy M Β· Oct 23, 2025
Not clear how to use it I want to verify what wavelength has the red-light I just purchased but is not clear
β˜…β˜†β˜†β˜†β˜† Joe Β· Mar 31, 2026
The app has been compromised by playstore.it should clearly tell frequencies, but its settings are set till you pay the vultures! don't use it it's not accurate.

Google Play Rankings for Spectroid

This app is not ranked

Technologies used by Spectroid

Spectroid is requesting 1 permissions and is using 0 libraries.
Show details
Trust & Safety: Permissions: android.permission.RECORD_AUDIO. The app is ProGuarded (is_proguarded). This setup indicates standard audio processing usage with basic obfuscation to improve security.
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