LEO Privacy Guard

#1 Privacy Guard. Hide apps, hide photos, hide videos. Lock app, Lock screen


129 Votes

  • Category Security/Performance
  • Program license Free
  • Version 6.1.9
  • Size 7 MB
  • Works under: Android
  • Program available in English
  • Content rating Everyone
  • Package name com.leo.appmaster
  • Program by Leomaster(AppLock & Privacy)
    Sangda Science & Technology Mansion, No. 1 Keji Road, Nanshan District, Shenzhen,518000 P.R.C

LEO Privacy Guard lets you protect your private information, locks apps and records evidence when unauthorized users attempt to access your device without your permission.

The best thing about LEO Privacy Guard is that it gives you total control over your privacy and files. Want to let other users access Chrome and nothing else without your password? You can do that! Want to hide only certain pictures and videos? You can do that too! You can even pick and choose what files you protect and what files you don’t.

LEO Privacy Guard also features a secure, multi-tabbed private browser, an AppLock that prevents access to specific apps, and tools to recover your phone if it’s stolen.

The most important feature of LEO Privacy Guard is the Break-In Alert. If someone that isn’t you (or is you, if you forget your password!) tries to access your device, the app will take a selfie. The intruder won’t know and you’ll have the evidence you need to prove someone was trying to access your device without your permission.

All in all, LEO Privacy Guard is a decent way to safeguard your privacy and files on your Android device.


  • Protect Personal Photos and Videos Protect all of your files or just the most important ones from the prying eyes of others.
  • Lock Individual Apps With AppLock no one but you can access your apps, even if they get into your phone.
  • Protect Your Browsing History, Too The built-in private browser protects your internet history.
  • Advanced Device Theft and Recovery Tools Locate your device remotely and sound an alarm to find it!


  • Can be Difficult to Uninstall Many users have reported that this app can be difficult to uninstall.

1. Add function——Cloud Backup:Back up your private data to Google Drive. Cloud data is never lost.

2. Reduce package size.

3. Optimize stability, fixed some crash and ANR bugs.

Potentially dangerous permissions

  • ACCESS_COARSE_LOCATION: Allows an app to access approximate location. Alternatively, you might want ACCESS_FINE_LOCATION.
  • ACCESS_COARSE_LOCATION: Allows an app to access approximate location. Alternatively, you might want ACCESS_FINE_LOCATION.
  • ACCESS_FINE_LOCATION: Allows an app to access precise location. Alternatively, you might want ACCESS_COARSE_LOCATION.
  • CAMERA: Required to be able to access the camera device.
  • GET_ACCOUNTS: Allows access to the list of accounts in the Accounts Service.
  • READ_CONTACTS: Allows an application to read the user's contacts data.
  • READ_EXTERNAL_STORAGE: Allows an application to read from external storage.
  • READ_EXTERNAL_STORAGE: Allows an application to read from external storage.
  • RECORD_AUDIO: Allows an application to record audio.
  • WRITE_CONTACTS: Allows an application to write the user's contacts data.
  • WRITE_EXTERNAL_STORAGE: Allows an application to write to external storage.

Other permissions

  • ACCESS_NETWORK_STATE: Allows applications to access information about networks.
  • ACCESS_WIFI_STATE: Allows applications to access information about Wi-Fi networks.
  • ACCOUNT_MANAGER: Allows applications to call into AccountAuthenticators.
  • BATTERY_STATS: Allows an application to collect battery statistics
  • BIND_APPWIDGET: Allows an application to tell the AppWidget service which application can access AppWidget's data. The normal user flow is that a user picks an AppWidget to go into a particular host, thereby giving that host application access to the private data from the AppWidget app. An application that has this permission should honor that contract.
  • BLUETOOTH: Allows applications to connect to paired bluetooth devices.
  • BLUETOOTH_ADMIN: Allows applications to discover and pair bluetooth devices.
  • BROADCAST_STICKY: Allows an application to broadcast sticky intents. These are broadcasts whose data is held by the system after being finished, so that clients can quickly retrieve that data without having to wait for the next broadcast.
  • CHANGE_CONFIGURATION: Allows an application to modify the current configuration, such as locale.
  • CHANGE_NETWORK_STATE: Allows applications to change network connectivity state.
  • CHANGE_WIFI_MULTICAST_STATE: Allows applications to enter Wi-Fi Multicast mode.
  • CHANGE_WIFI_STATE: Allows applications to change Wi-Fi connectivity state.
  • CLEAR_APP_CACHE: Allows an application to clear the caches of all installed applications on the device.
  • DELETE_PACKAGES: Allows an application to delete packages.
  • DISABLE_KEYGUARD: Allows applications to disable the keyguard if it is not secure.
  • EXPAND_STATUS_BAR: Allows an application to expand or collapse the status bar.
  • EXPAND_STATUS_BAR: Allows an application to expand or collapse the status bar.
  • EXPAND_STATUS_BAR: Allows an application to expand or collapse the status bar.
  • GET_PACKAGE_SIZE: Allows an application to find out the space used by any package.
  • GET_TASKS: This constant was deprecated in API level 21. No longer enforced.
  • INSTALL_PACKAGES: Allows an application to install packages.
  • INSTALL_SHORTCUT: Allows an application to install a shortcut in Launcher.
  • INSTALL_SHORTCUT: Allows an application to install a shortcut in Launcher.
  • INSTALL_SHORTCUT: Allows an application to install a shortcut in Launcher.
  • INTERNET: Allows applications to open network sockets.
  • KILL_BACKGROUND_PROCESSES: Allows an application to call killBackgroundProcesses(String).
  • MEDIA_CONTENT_CONTROL: Allows an application to know what content is playing and control its playback.
  • MODIFY_AUDIO_SETTINGS: Allows an application to modify global audio settings.
  • MOUNT_UNMOUNT_FILESYSTEMS: Allows mounting and unmounting file systems for removable storage.
  • NFC: Allows applications to perform I/O operations over NFC.
  • PACKAGE_USAGE_STATS: Allows an application to collect component usage statistics
  • PERSISTENT_ACTIVITY: This constant was deprecated in API level 9. This functionality will be removed in the future; please do not use. Allow an application to make its activities persistent.
  • READ_LOGS: Allows an application to read the low-level system log files.
  • READ_SYNC_SETTINGS: Allows applications to read the sync settings.
  • READ_SYNC_STATS: Allows applications to read the sync stats.
  • RECEIVE_BOOT_COMPLETED: Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting. If you don't request this permission, you will not receive the broadcast at that time. Though holding this permission does not have any security implications, it can have a negative impact on the user experience by increasing the amount of time it takes the system to start and allowing applications to have themselves running without the user being aware of them. As such, you must explicitly declare your use of this facility to make that visible to the user.
  • REORDER_TASKS: Allows an application to change the Z-order of tasks.
  • REQUEST_INSTALL_PACKAGES: Allows an application to request installing packages. Apps targeting APIs greater than 22 must hold this permission in order to use ACTION_INSTALL_PACKAGE.
  • RESTART_PACKAGES: This constant was deprecated in API level 8. The restartPackage(String) API is no longer supported.
  • SET_ALARM: Allows an application to broadcast an Intent to set an alarm for the user.
  • SET_TIME_ZONE: Allows applications to set the system time zone.
  • SET_WALLPAPER: Allows applications to set the wallpaper.
  • SET_WALLPAPER_HINTS: Allows applications to set the wallpaper hints.
  • STATUS_BAR: Allows an application to open, close, or disable the status bar and its icons.
  • SYSTEM_ALERT_WINDOW: Allows an app to create windows using the type TYPE_SYSTEM_ALERT, shown on top of all other apps. Very few apps should use this permission; these windows are intended for system-level interaction with the user.
  • TRANSMIT_IR: Allows using the device's IR transmitter, if available.
  • UNINSTALL_SHORTCUT: This permission is no longer supported.
  • USE_FINGERPRINT: Allows an app to use fingerprint hardware.
  • VIBRATE: Allows access to the vibrator.
  • VIBRATE: Allows access to the vibrator.
  • WAKE_LOCK: Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
  • WRITE_APN_SETTINGS: Allows applications to write the apn settings.
  • WRITE_SETTINGS: Allows an application to read or write the system settings.
  • WRITE_SYNC_SETTINGS: Allows applications to write the sync settings.
  • android.permission.ACCESS_CACHE_FILESYSTEM
  • android.permission.ACCESS_DOWNLOAD_MANAGER
  • android.permission.ACCESS_MOCK_LOCATION
  • android.permission.ACCESS_WIMAX_STATE
  • android.permission.AUTHENTICATE_ACCOUNTS
  • android.permission.BIND_DIRECTORY_SEARCH
  • android.permission.CHANGE_WIMAX_STATE
  • android.permission.CLEAR_APP_USER_DATA
  • android.permission.DEVICE_POWER
  • android.permission.FLASHLIGHT
  • android.permission.FOREGROUND_SERVICE
  • android.permission.GET_CLIPS
  • android.permission.GET_INTENT_SENDER_INTENT
  • android.permission.MANAGE_ACCOUNTS
  • android.permission.READ_CLIPS
  • android.permission.READ_INSTALL_SESSIONS
  • android.permission.READ_OWNER_DATA
  • android.permission.READ_SOCIAL_STREAM
  • android.permission.READ_USER_DICTIONARY
  • android.permission.RECEIVE_USER_PRESENT
  • android.permission.SUBSCRIBED_FEEDS_READ
  • android.permission.SUBSCRIBED_FEEDS_WRITE
  • android.permission.SYSTEM_OVERLAY_WINDOW
  • android.permission.UPDATE_APP_OPS_STATS
  • android.permission.USE_CREDENTIALS
  • android.permission.WRITE_CLIPS
  • android.permission.WRITE_MEDIA_STORAGE
  • android.permission.WRITE_OWNER_DATA
  • android.permission.WRITE_SOCIAL_STREAM
  • android.permission.WRITE_USER_DICTIONARY
  • cn.nubia.launcher.permission.READ_SETTINGS
  • com.actionlauncher.playstore.permission.READ_SETTINGS
  • com.anddoes.launcher.permission.READ_SETTINGS
  • com.android.browser.permission.READ_HISTORY_BOOKMARKS
  • com.android.browser.permission.WRITE_HISTORY_BOOKMARKS
  • com.android.launcher.permission.READ_SETTINGS
  • com.android.launcher.permission.WRITE_SETTINGS
  • com.android.launcher2.permission.INSTALL_SHORTCUT
  • com.android.launcher2.permission.READ_SETTINGS
  • com.android.launcher3.permission.INSTALL_SHORTCUT
  • com.android.launcher3.permission.READ_SETTINGS
  • com.android.vending.BILLING
  • com.android.vending.CHECK_LICENSE
  • com.android.voicemail.permission.READ_WRITE_ALL_VOICEMAIL
  • com.apusapps.launcher.permission.READ_SETTINGS
  • com.bbk.launcher2.permission.READ_SETTINGS
  • com.bbk.launcher2.permission.WRITE_SETTINGS
  • com.fingerprints.service.ACCESS_FINGERPRINT_MANAGER
  • com.google.android.c2dm.permission.RECEIVE
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
  • com.google.android.gms.permission.ACTIVITY_RECOGNITION
  • com.google.android.gms.permission.AD_ID_NOTIFICATION
  • com.google.android.googleapps.permission.GOOGLE_AUTH
  • com.google.android.googleapps.permission.GOOGLE_AUTH.OTHER_SERVICES
  • com.google.android.googleapps.permission.GOOGLE_AUTH.YouTubeUser
  • com.google.android.googleapps.permission.GOOGLE_AUTH.adsense
  • com.google.android.googleapps.permission.GOOGLE_AUTH.adwords
  • com.google.android.googleapps.permission.GOOGLE_AUTH.ah
  • com.google.android.googleapps.permission.GOOGLE_AUTH.blogger
  • com.google.android.googleapps.permission.GOOGLE_AUTH.cl
  • com.google.android.googleapps.permission.GOOGLE_AUTH.cp
  • com.google.android.googleapps.permission.GOOGLE_AUTH.dodgeball
  • com.google.android.googleapps.permission.GOOGLE_AUTH.finance
  • com.google.android.googleapps.permission.GOOGLE_AUTH.gbase
  • com.google.android.googleapps.permission.GOOGLE_AUTH.grandcentral
  • com.google.android.googleapps.permission.GOOGLE_AUTH.groups2
  • com.google.android.googleapps.permission.GOOGLE_AUTH.health
  • com.google.android.googleapps.permission.GOOGLE_AUTH.ig
  • com.google.android.googleapps.permission.GOOGLE_AUTH.jotspot
  • com.google.android.googleapps.permission.GOOGLE_AUTH.knol
  • com.google.android.googleapps.permission.GOOGLE_AUTH.lh2
  • com.google.android.googleapps.permission.GOOGLE_AUTH.local
  • com.google.android.googleapps.permission.GOOGLE_AUTH.mail
  • com.google.android.googleapps.permission.GOOGLE_AUTH.mobile
  • com.google.android.googleapps.permission.GOOGLE_AUTH.news
  • com.google.android.googleapps.permission.GOOGLE_AUTH.notebook
  • com.google.android.googleapps.permission.GOOGLE_AUTH.orkut
  • com.google.android.googleapps.permission.GOOGLE_AUTH.print
  • com.google.android.googleapps.permission.GOOGLE_AUTH.sitemaps
  • com.google.android.googleapps.permission.GOOGLE_AUTH.speech
  • com.google.android.googleapps.permission.GOOGLE_AUTH.speechpersonalization
  • com.google.android.googleapps.permission.GOOGLE_AUTH.talk
  • com.google.android.googleapps.permission.GOOGLE_AUTH.wifi
  • com.google.android.googleapps.permission.GOOGLE_AUTH.wise
  • com.google.android.googleapps.permission.GOOGLE_AUTH.writely
  • com.google.android.googleapps.permission.GOOGLE_AUTH.youtube
  • com.google.android.launcher.permission.READ_SETTINGS
  • com.google.android.providers.gsf.permission.READ_GSERVICES
  • com.google.android.providers.talk.permission.READ_ONLY
  • com.google.android.providers.talk.permission.WRITE_ONLY
  • com.htc.launcher.permission.READ_SETTINGS
  • com.huawei.android.launcher.permission.CHANGE_BADGE
  • com.huawei.android.launcher.permission.READ_SETTINGS
  • com.huawei.authentication.HW_ACCESS_AUTH_SERVICE
  • com.lenovo.launcher.permission.READ_SETTINGS
  • com.leo.appmaster.permission.C2D_MESSAGE
  • com.mx.launcher.permission.READ_SETTINGS
  • com.oppo.launcher.permission.READ_SETTINGS
  • com.s.launcher.permission.READ_SETTINGS
  • com.samsung.android.providers.context.permission.READ_RECORD_AUDIO
  • com.samsung.android.providers.context.permission.WRITE_RECORD_AUDIO
  • com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY
  • com.samsung.android.scloud.backup.lib.read
  • com.samsung.android.scloud.backup.lib.write
  • com.samsung.svoice.sync.ACCESS_SERVICE
  • com.samsung.svoice.sync.READ_DATABASE
  • com.samsung.svoice.sync.WRITE_DATABASE
  • com.sec.android.app.voicenote.Controller
  • com.sec.android.permission.LAUNCH_PERSONAL_PAGE_SERVICE
  • com.sec.android.permission.VOIP_INTERFACE
  • com.sec.android.settings.permission.SOFT_RESET
  • com.teslacoilsw.launcher.permission.READ_SETTINGS
  • com.tsf.shell.permission.READ_SETTINGS
  • sec.android.permission.READ_MSG_PREF
Alternatives to LEO Privacy Guard
You might also be interested in…

Private Vault  4.10

Powerful photo storage app that protects all of your snapshots with multiple layers of security

Vaulty  4.8.14 release r8500

Get better security for your private photos, so only you are able to access them

PicLock  3.1

Encrypt all of the photos and videos on your Android device with this security app

Video Locker  2.1.1

Hide your video files and make them private and only accessible by you with this app

GalleryVault  3.14.82

Hide pictures, videos, audios and documents, support SD card, and cloud backup

Audio Manager  8.4

Audio app for customizing and personalizing all your audio settings