Oscilloscope

Oscope is an Oscilloscope that displays audio waves taken from your microphone.

Sound-Base Audio, LLC · org.sbaudio.oscope

Not rated yet 500K+ downloads v3.3 3.1 MB Android 5.0+ PEGI 3 · Everyone

Download APK 3.1 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v3.3 (13)
Updated: Aug 20, 2025 (1 year ago)
APK size: 3.1 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Nov 11, 2021 (at least)
Permissions: 13 (3 sensitive)
Website: sbaud.io
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Oscilloscope is an app by Sound-Base Audio, LLC in the Tools category, listed since at least November 2021. It has no native code, so it runs on any Android processor.

Since version 3.1, the minimum Android version rose from 4.4 to 5.0. It asks for 13 permissions, 3 of them sensitive: record audio, read shared storage and modify shared storage. Compared with version 3.2, it adds 1 new permission: “Read shared storage”. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v3.3

Fixed crash affecting Spectrogram on certain devices. Updated billing and licensing library to work with promo codes again. Fixed Admob policy violation. Dependency updates.

Description

From the listing uploaded by “appupdater”.

An audio oscilloscope is a type of oscilloscope that is specifically designed to measure and display audio signals. Audio signals are electrical signals that represent sound waves. They are typically in the range of 20 Hz to 20 kHz, which is the range of human hearing. Audio oscilloscopes are used by a variety of professionals, including audio engineers, musicians, and technicians. They are used to troubleshoot audio problems, design audio equipment, and analyze audio recordings. Features • Scope, Meter, & FFT displays • FFT peak tracking with readout • Quickly take screenshots • High contrast colors for view-ability Permissions This app requires minimal permissions, but must have permission to access and record audio from the device's microphone, as well as permission to write screenshots to the device's storage.

Version history

3 versions are listed, going back to v3.1. Since v3.3 it requires Android 5.0+.

v3.3 LATEST Aug 20, 2025 3.1 MB TRUSTED v3.2 Aug 20, 2025 2.9 MB TRUSTED v3.1 Sep 17, 2023 2.9 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 20, 2025.
Certificate issued to “Sound-Base Audio, LLC” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Aug 20, 2025
Validated against Google Play Aug 20, 2025
Signed byCN=Luke Mihyar, OU=DSP Programming, O="Sound-Base Audio, LLC", L=Atlanta, ST=Georgia, C=US
Signing certificate (SHA-1)8C:52:88:B9:09:79:34:D2:A8:6E:B8:56:58:36:29:C6:05:B3:7D:8E
File MD5499df7918f6099abded954363c64b348
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (13)

Oscilloscope requests 13 permissions, 3 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Full network access android.permission.INTERNET
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) org.sbaudio.oscope.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Microphone android.hardware.microphone

Oscilloscope APK: questions and answers

Is there a version of Oscilloscope for older Android phones?

The current version needs Android 5.0 or later. Version 3.2 is the newest listed build that installs on Android 4.4 and later. Get version 3.2 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is Oscilloscope free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Oscilloscope APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 499df7918f6099abded954363c64b348.