QR Code Scanner v2.2.21
APK · 6.7 MB · version code 135 · Android 4.1+ · uploaded Jul 12, 2022
- v2.2.222 uses a different certificate Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v2.2.222, uploaded Jul 28, 2026 — about 4 years after this one.
- Size: this file is 6.7 MB; the latest is 31.2 MB (24.5 MB larger).
- Android: this version needs Android 4.1+; the latest needs Android 7.0+. Use this one if your device runs an older Android release.
- The latest version asks for 5 more permissions: Access adservices ad id, Access adservices attribution, Access adservices topics, Run foreground services, Internal broadcast protection (app-defined).
- The latest version no longer asks for: Run at startup.
File information
- Version
- v2.2.21 (135)
- Uploaded
- Jul 12, 2022
- Size
- 6.7 MB
- Requires
- Android 4.1+ (API 16)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- d04c62a8913c6eeb9828c6b02166fad9
- Signing certificate (SHA-1)
- 95:A5:1A:9A:5E:66:0E:BF:B3:8E:22:12:37:C0:5F:9E:1C:8F:78:EB
- Signed by
- CN=QR & Barcode Scanner
- File name
- com-gamma-scan-135-62795909-d04c62a8913c6eeb9828c6b02166fad9.apk
- Package
- com.gamma.scan
- Downloads (all versions)
- 500M+
- Age rating
- PEGI 3 · Everyone
What's new in v2.2.21
Thanks for using QR & Barcode Scanner! We bring updates to Google Play regularly to constantly improve speed, reliability, performance and fix bugs.
Permissions (12)
This version requests 12 permissions, 1 of them sensitive.
- Camera Sensitive android.permission.CAMERA
- Advertising ID com.google.android.gms.permission.AD_ID
- Change wifi multicast state android.permission.CHANGE_WIFI_MULTICAST_STATE
- Change wifi state android.permission.CHANGE_WIFI_STATE
- Control vibration android.permission.VIBRATE
- Flashlight android.permission.FLASHLIGHT
- 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
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “QR & Barcode Scanner” Not the developer's name (“Gamma Play .com”). Names in certificates can't be verified, so this alone proves nothing.
- v2.2.222 uses a different certificate v2.2.58, v2.0.9 and v1.364 use the same one as this file. Android normally won't update an installed app with a file signed by another certificate, and a new certificate can mean a different publisher. v2.2.222
Store checks
- Developer signature under review Mar 15, 2025
- Antivirus scan result not available
- Uploaded by “appninazonozina” 5 followers · uploading since 2022
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (4 other versions compared). AAPKs doesn't scan files itself.
How to install QR Code Scanner on Android 4.1+
You'll need about 13.3 MB of free space.
- Download the APK — tap Download APK above (6.7 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-gamma-scan-135-62795909-d04c62a8913c6eeb9828c6b02166fad9.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be d04c62a8913c6eeb9828c6b02166fad9. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open QR Code Scanner — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 4.1+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.