BAT NFC v2.4
APK · 7.6 MB · version code 21 · Android 4.4+ · uploaded Jan 25, 2026
- Signature matches the Google Play version 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 v2.6, uploaded Nov 7, 2025.
- Size: this file is 7.6 MB; the latest is 7.8 MB (136.2 KB larger).
- Both versions request the same permissions.
File information
- Version
- v2.4 (21)
- Uploaded
- Jan 25, 2026
- Size
- 7.6 MB
- Requires
- Android 4.4+ (API 19)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 780feeec25c677e4c1306693859b1c2f
- Signing certificate (SHA-1)
- 15:09:D2:0B:36:9D:3E:FC:1E:21:72:5C:09:4A:C5:63:9B:30:54:31
- Signed by
- CN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
- File name
- eus-ctb-batnfcapp-21-73289509-780feeec25c677e4c1306693859b1c2f.apk
- Package
- eus.ctb.batnfcapp
- Downloads (all versions)
- 50K+
- Age rating
- PEGI 3 · Everyone
Permissions (10)
This version requests 10 permissions, none of them sensitive.
- Advertising ID com.google.android.gms.permission.AD_ID
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Nfc android.permission.NFC
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jan 25, 2026.
- Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
- Same certificate as the 2 other versions checked
Store checks
- Developer signature verified Jan 25, 2026
- Validated against Google Play Jan 25, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans 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.
How to install BAT NFC on Android 4.4+
You'll need about 15.3 MB of free space.
- Download the APK — tap Download APK above (7.6 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 eus-ctb-batnfcapp-21-73289509-780feeec25c677e4c1306693859b1c2f.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 780feeec25c677e4c1306693859b1c2f. 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 BAT NFC — 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 4.4+). 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.