Couchgram, Call and App Lock3.5.6

> App Lock
Protect your phone logs, text messages, photos, video and etc with WhatsApp and Facebook.
(- Fingerprint lock is only supported on Android 6.0 device with fingerprint sensor)

> Incoming Call Lock
You can have full privacy for your incoming calls by setting your own password > Hide Caller ID / Rename Caller ID
You can change or hide caller's name or number on incoming call screen. > Phone Booster (Memory Boost)
Clean your memory and speed up your device.
Just press the Boost button! > Call Log Auto Delete contacts
Would you like to hide your call logs? Register a contact to delete call logs automatically.
(Note: Messages will not be deleted.) > Incoming Call Wallpapers
Express your preferences by selecting unique incoming call wallpapers.
Try selecting photos that capture your favorite moments. > Night Mode
Be able to use your smartphone even in dark places like the movies by setting the screen's brightness to a darker screen than the usual phone configuration allows.
Crowded places? Protect what's on your phone's screen by lowering the brightness.
Be able to spend time with the people you love without distractions. Use Theatre Mode to control your phone's brightness! > Permission required
Device - App history : Permission required for App-Lock
Identity : Permission required for installing App
Contacts : Permission required for Incoming Call Lock
SMS : Permission required for switching to instant messaging during a call
Phone : Permission required for Auto Deleting Call Log
Photos/Media/Files : Permission required for using Photo Gallery as Incoming Call and App Lock Wallpapers
Storage : Permission for using App Lock Wallpapers > Connect with Couchgram on Facebook