Apps like StorageNinja - Lock & Cleaner

Here are some great alternatives to StorageNinja - Lock & Cleaner by Sinar Tani :
Smart Phone Cleaner
Smart Phone Cleaner
★4.2
Device Manager-Phone Assistant
Device Manager-Phone Assistant
★5.0
Screen Lock – Gold Zip Locker
Screen Lock – Gold Zip Locker
★4.1
TrekSnap
TrekSnap
★4.5
Storage Cleaner: Photo & Video
Storage Cleaner: Photo & Video
★4.8
HideX: Lock, Hide photo, video
HideX: Lock, Hide photo, video
★4.1
Lockio, Fingerprint App locker
Lockio, Fingerprint App locker
★4.7
Quick AntiVirus
Quick AntiVirus
★4.2
Unneeded File Manager Cleaner
Unneeded File Manager Cleaner
★4.3
SD Card File Transfer manager
SD Card File Transfer manager
★3.7
Ten PhoneManager
Ten PhoneManager
★4.4
Secure Guard & CleanTools
Secure Guard & CleanTools
★4.1
Folder Manager & Antivirus
Folder Manager & Antivirus
★4.9
Calculator Lock - Hide Photos
Calculator Lock - Hide Photos
★4.3
Space Manager : Check Storage
Space Manager : Check Storage
★3.9
Lock my Folder - Folder hider
Lock my Folder - Folder hider
★4.1