SmartCircle Display 4 v4.255
APK · 25.1 MB · version code 4255 · Android 5.0+ · uploaded Jan 15, 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 v4.307, uploaded Aug 5, 2026 — about 7 months after this one.
- Size: this file is 25.1 MB; the latest is 27.4 MB (2.3 MB larger).
- The latest version asks for 11 more permissions: Bluetooth connect, Bluetooth scan, Foreground service camera, Foreground service connected device, Foreground service data sync, Foreground service location, Nearby wifi devices, Read privileged phone state….
File information
- Version
- v4.255 (4255)
- Uploaded
- Jan 15, 2026
- Size
- 25.1 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Screen
- Small screens and larger
- MD5
- e757d85f8692e40ed448cc320f455d56
- Signing certificate (SHA-1)
- F0:DE:D8:BA:D5:F8:42:3C:F6:66:7D:AE:B3:50:E1:48:C3:0E:CA:0C
- Signed by
- CN=Bill Dandie, OU=HQ, O=RTG Global Inc., L=Caledon, ST=ON, C=CA
- File name
- net-smartcircle-display4-4255-73102167-e757d85f8692e40ed448cc320f455d56.apk
- Package
- net.smartcircle.display4
- Downloads (all versions)
- 1K+
- Age rating
- PEGI 3 · Everyone
What's new in v4.255
campaign priority fix and stop downloading bad package after 5 tries
Permissions (53)
This version requests 53 permissions, 16 of them sensitive.
- Access all files Sensitive android.permission.MANAGE_EXTERNAL_STORAGE
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Camera Sensitive android.permission.CAMERA
- Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Location in the background Sensitive android.permission.ACCESS_BACKGROUND_LOCATION
- Package usage stats Sensitive android.permission.PACKAGE_USAGE_STATS
- Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
- Read calendar Sensitive android.permission.READ_CALENDAR
- Read contacts Sensitive android.permission.READ_CONTACTS
- Read media audio Sensitive android.permission.READ_MEDIA_AUDIO
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- See all installed apps Sensitive android.permission.QUERY_ALL_PACKAGES
- Write calendar Sensitive android.permission.WRITE_CALENDAR
- Write contacts Sensitive android.permission.WRITE_CONTACTS
- Write settings Sensitive android.permission.WRITE_SETTINGS
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Access location extra commands android.permission.ACCESS_LOCATION_EXTRA_COMMANDS
- Access notification policy android.permission.ACCESS_NOTIFICATION_POLICY
- Advertising ID com.google.android.gms.permission.AD_ID
- Authenticate accounts android.permission.AUTHENTICATE_ACCOUNTS
- Bluetooth android.permission.BLUETOOTH
- Bluetooth admin android.permission.BLUETOOTH_ADMIN
- Broadcast close system dialogs android.permission.BROADCAST_CLOSE_SYSTEM_DIALOGS
- Change network state android.permission.CHANGE_NETWORK_STATE
- Change wifi multicast state android.permission.CHANGE_WIFI_MULTICAST_STATE
- Change wifi state android.permission.CHANGE_WIFI_STATE
- Control vibration android.permission.VIBRATE
- Disable keyguard android.permission.DISABLE_KEYGUARD
- Expand status bar android.permission.EXPAND_STATUS_BAR
- Foreground service special use android.permission.FOREGROUND_SERVICE_SPECIAL_USE
- Full network access android.permission.INTERNET
- Get package size android.permission.GET_PACKAGE_SIZE
- Get tasks android.permission.GET_TASKS
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- High sampling rate sensors android.permission.HIGH_SAMPLING_RATE_SENSORS
- Internal broadcast protection (app-defined) net.smartcircle.display4.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Kill background processes android.permission.KILL_BACKGROUND_PROCESSES
- Manage accounts android.permission.MANAGE_ACCOUNTS
- Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
- Nfc android.permission.NFC
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read settings android.permission.READ_SETTINGS
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Reorder tasks android.permission.REORDER_TASKS
- Request ignore battery optimizations android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Set wallpaper android.permission.SET_WALLPAPER
- Show notifications android.permission.POST_NOTIFICATIONS
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- 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 15, 2026.
- Certificate issued to “RTG Global Inc.” This is the certificate of the Google Play version.
- Same certificate as the 3 other versions checked
Store checks
- Developer signature verified Jan 15, 2026
- Validated against Google Play Jan 15, 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 (3 other versions compared). AAPKs doesn't scan files itself.
How to install SmartCircle Display 4 on Android 5.0+
You'll need about 50.2 MB of free space.
- Download the APK — tap Download APK above (25.1 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 net-smartcircle-display4-4255-73102167-e757d85f8692e40ed448cc320f455d56.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 e757d85f8692e40ed448cc320f455d56. 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 SmartCircle Display 4 — 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 5.0+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.