Apps like Secure Folder : Secure Vault

Here are some great alternatives to Secure Folder : Secure Vault by Fairy Duster :
Vault - Hide Pics, App Lock
Vault - Hide Pics, App Lock
★4.3
Calculator Lock: Gallery Vault
Calculator Lock: Gallery Vault
★4.4
App Lock - Applock Fingerprint
App Lock - Applock Fingerprint
★4.7
Smart Vault - Hide Photo Video
Smart Vault - Hide Photo Video
★4.0
 Hide Photo Vault  &Videos 
 Hide Photo Vault  &Videos 
★4.5
Gallery Vault-Hide Photo Video
Gallery Vault-Hide Photo Video
★4.0
Hide Photos, Videos:Calculator
Hide Photos, Videos:Calculator
★4.0
Hidden Safe: Photo Vault App
Hidden Safe: Photo Vault App
★4.0
Gallery Lock Photo Video Vault
Gallery Lock Photo Video Vault
★4.3
Personal Vault, Hide Any Files
Personal Vault, Hide Any Files
★4.2
Folder Lock Pro
Folder Lock Pro
★4.2
Private Zone-Applock, Vault
Private Zone-Applock, Vault
★4.1
Calculator Vault - Hide Photos
Calculator Vault - Hide Photos
★4.8
Secure Folder – Secure files
Secure Folder – Secure files
★3.7
Photo Vault - Hide Photos, Vid
Photo Vault - Hide Photos, Vid
★4.4
Photo Vaulty - Gallery Lock, G
Photo Vaulty - Gallery Lock, G
★4.2