QR code scanner

Try QR code app to make your smartphone as powerful QR code / BarCode scanner.

Application4u · com.application_4u.qrcode.barcode

5.0 out of 5 (3 ratings) 10M+ downloads v2.7.7 3 MB Android 6.0+ PEGI 3 · Everyone

Download APK 3 MB All versions

Signature matches the Google Play version Details

Watch the QR code scanner trailer on YouTube

At a glance

Latest version: v2.7.7 (277)
Updated: Aug 31, 2026 (1 month ago)
APK size: 3 MB
Requires: Android 6.0+ (API 23)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Dec 11, 2020 (at least)
Permissions: 12 (1 sensitive)
Website: application-4u.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

QR code scanner is an app by Application4u in the Tools category, listed since at least December 2020. It has no native code, so it runs on any Android processor.

Since version 2.7.2, the APK grew from 2.7 MB to 3 MB and the minimum Android version rose from 4.4 to 6.0. It asks for 12 permissions, 1 of them sensitive: camera. It asks for the same permissions as version 2.7.6. The app can read the advertising ID that ad and analytics services use.

What's new in v2.7.7

update sdk. minor improvements.

Description

From the listing uploaded by “appupdater”.

This QR code scanner application is very fast and easy to use. Just focus the QRcode which you want to scan it. Scan the QR code , the app decodes the QR code / Bar Code automatically and show you the action via click button. Features: - Very fast - Very accurate and robust. - Many data type supported. - More features.

Version history

4 versions are listed, going back to v2.7.2. Since v2.7.3 it requires Android 6.0+.

v2.7.7 LATEST Aug 31, 2026 3 MB TRUSTED v2.7.6 Sep 6, 2026 2.9 MB TRUSTED v2.7.3 Oct 7, 2024 2.8 MB TRUSTED v2.7.2 Nov 5, 2025 2.7 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 31, 2026.
Certificate issued to “Chang Lang” 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 31, 2026
Validated against Google Play Aug 31, 2026
Signed byCN=Chang Lang, C=886
Signing certificate (SHA-1)45:15:5F:A1:D0:DC:C4:55:EB:FE:2E:99:0B:4F:85:7C:18:92:66:CC
File MD5940caab1d4f1f0494b23eb4d3382e0aa
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 (12)

QR code scanner requests 12 permissions, 1 of them sensitive.

Camera Sensitive android.permission.CAMERA
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
Change wifi state android.permission.CHANGE_WIFI_STATE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.application_4u.qrcode.barcode.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Camera android.hardware.camera
Camera autofocus android.hardware.camera.autofocus
Basic touch input android.hardware.faketouch
Wi-Fi android.hardware.wifi

QR code scanner APK: questions and answers

Is there a version of QR code scanner for older Android phones?

The current version needs Android 6.0 or later. Version 2.7.2 is the newest listed build that installs on Android 4.4 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 2.7.2 · 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 the QR code scanner 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 940caab1d4f1f0494b23eb4d3382e0aa.