DU Speed Booster v2.5.4.4
APK · 8.7 MB · version code 1506 · Android 2.3+ · uploaded Jul 9, 2015
- 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 v2.3.0.0, uploaded Sep 17, 2025 — about 10 years after this one.
- Size: this file is 8.7 MB; the latest is 8.4 MB (248.9 KB smaller).
- The latest version asks for 2 more permissions: Precise location, Read contacts.
File information
- Version
- v2.5.4.4 (1506)
- Uploaded
- Jul 9, 2015
- Size
- 8.7 MB
- Requires
- Android 2.3+ (API 9)
- CPU support
- x86 32-bit, ARM (legacy), ARM 32-bit
- Google Play services
- Optional (some features use it)
- Screen
- Small screens and larger
- MD5
- e63d6ebe8a1e340ff64be467315147dc
- Signing certificate (SHA-1)
- EC:D5:A7:AD:A0:AD:65:6E:CE:B9:B8:DE:79:9E:61:C2:0E:71:4D:7F
- Signed by
- CN=Tapas, OU=Tapas Mobile, O=Tapas Mobile, L=Beijing, ST=Beijing, C=CN
- File name
- com-dianxinos-optimizer-duplay-1506-43211897-e63d6ebe8a1e340ff64be467315147dc.apk
- Package
- com.dianxinos.optimizer.duplay
- Downloads (all versions)
- 3.7M
- Age rating
- PEGI 12 · Low Maturity
What's new in v2.5.4.4
Version 1.7.0 Updates：
- Optimize Call&SMS Blocker;
- Optimize Trash Cleaner;
- Optimize Game Booster;
Permissions (45)
This version requests 45 permissions, 11 of them sensitive.
- Call phone Sensitive android.permission.CALL_PHONE
- 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
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Process outgoing calls Sensitive android.permission.PROCESS_OUTGOING_CALLS
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Read sms Sensitive android.permission.READ_SMS
- Receive sms Sensitive android.permission.RECEIVE_SMS
- Write contacts Sensitive android.permission.WRITE_CONTACTS
- Write settings Sensitive android.permission.WRITE_SETTINGS
- Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
- Battery stats android.permission.BATTERY_STATS
- Bluetooth android.permission.BLUETOOTH
- Bluetooth admin android.permission.BLUETOOTH_ADMIN
- Broadcast sticky android.permission.BROADCAST_STICKY
- Change configuration android.permission.CHANGE_CONFIGURATION
- 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
- Clear app cache android.permission.CLEAR_APP_CACHE
- Control vibration android.permission.VIBRATE
- Delete cache files android.permission.DELETE_CACHE_FILES
- Duplay update (custom) com.dianxinos.optimizer.duplay.permission.UPDATE
- Full network access android.permission.INTERNET
- Get package size android.permission.GET_PACKAGE_SIZE
- Get tasks android.permission.GET_TASKS
- Kill background processes android.permission.KILL_BACKGROUND_PROCESSES
- Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
- Modify phone state android.permission.MODIFY_PHONE_STATE
- Mount unmount filesystems android.permission.MOUNT_UNMOUNT_FILESYSTEMS
- Optimizer scan (custom) com.dianxinos.optimizer.permission.SCAN
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read logs android.permission.READ_LOGS
- Read secure settings android.permission.READ_SECURE_SETTINGS
- Read sync settings android.permission.READ_SYNC_SETTINGS
- Read sync stats android.permission.READ_SYNC_STATS
- Remove home-screen shortcuts com.android.launcher.permission.UNINSTALL_SHORTCUT
- Restart packages android.permission.RESTART_PACKAGES
- 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
- Write apn settings android.permission.WRITE_APN_SETTINGS
- Write sms android.permission.WRITE_SMS
- Write sync settings android.permission.WRITE_SYNC_SETTINGS
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jul 15, 2015.
- Certificate issued to “Tapas Mobile” This is the certificate of the Google Play version.
- Same certificate as the 6 other versions checked
Store checks
- Developer signature verified Jul 9, 2015
- Validated against Google Play Jul 15, 2015
- Antivirus scan passed Nov 22, 2020
- Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (6 other versions compared). AAPKs doesn't scan files itself.
How to install DU Speed Booster on Android 2.3+
You'll need about 17.4 MB of free space.
- Download the APK — tap Download APK above (8.7 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-dianxinos-optimizer-duplay-1506-43211897-e63d6ebe8a1e340ff64be467315147dc.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 e63d6ebe8a1e340ff64be467315147dc. 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 DU Speed Booster — 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 2.3+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 32-bit, ARM (legacy), ARM 32-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.