Buzzer

Have a quiz with a real Buzzer. Or join your favorite TV show and buzz.

naRRu · com.runarapps.buzzer

5.0 out of 5 (1 rating) 500K+ downloads v2.0 3.6 MB Android 4.0+ PEGI 3 · Everyone

Download APK 3.6 MB All versions

At a glance

Latest version: v2.0 (12)
Updated: Feb 7, 2021 (5 years ago)
APK size: 3.6 MB
Requires: Android 4.0+ (API 14)
CPU support: Any (no native code)
Category: Entertainment (app)
Listed since: Dec 4, 2018 (at least)
Permissions: 8 (1 sensitive)
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Buzzer is an app by naRRu in the Entertainment category, listed since at least December 2018. It has no native code, so it runs on any Android processor.

It asks for 8 permissions, 1 of them sensitive: modify shared storage.

What's new in v2.0

Bug fixes.

Description

From the listing uploaded by “apps”.

Press the button and you will hear a loud buzzer sound. The red button will sound a buzzer, the green button will sound a bell Use it for a game, quiz, show or to annoy your friend or colleague. The buzz is a loud factory horn, that makes noise as long a you hold the button. After the taser, electric shaver, hammer, the whip and a load of other funny apps, we present the Buzzer. Buzz along with your favourite TV shows; Song contests, talent contests, ... got Talent and so on.

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate issued to “Derk Vrijdag” Not the developer's name (“naRRu”). Names in certificates can't be verified, so this alone proves nothing.

Store checks and file details

Developer signature under review Nov 18, 2025
Antivirus scan passed Nov 6, 2020
Signed byCN=Derk Vrijdag, C=NL
Signing certificate (SHA-1)B2:9E:73:85:A0:72:F7:B8:33:67:FD:6A:A3:21:55:24:D3:27:62:68
File MD5513baa9674f50d2670b783b093dc3d8b
Uploaded by “apps” Platinum tier · 3,423,810 followers · uploading since 2010

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

Permissions (8)

Buzzer requests 8 permissions, 1 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Prevent the device from sleeping android.permission.WAKE_LOCK
Push messaging (app-defined) com.runarapps.buzzer.permission.C2D_MESSAGE
Receive push notifications com.google.android.c2dm.permission.RECEIVE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Touchscreen android.hardware.touchscreen

Buzzer APK: questions and answers

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

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the Buzzer APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is 513baa9674f50d2670b783b093dc3d8b.