Apps like GateKeeper Trident

Here are some great alternatives to GateKeeper Trident by Untethered Labs, Inc. :
Safetrust Wallet
Safetrust Wallet
★4.0
Vault Master - Hide Photo
Vault Master - Hide Photo
★4.5
SecureData Lock User
SecureData Lock User
★3.4
EndpointLock
EndpointLock
★4.1
Cryptomator
Cryptomator
★3.8
Keeper Password Manager
Keeper Password Manager
★4.5
Lock Screen - Keypad Passcode
Lock Screen - Keypad Passcode
★4.2
AppLock - Protect Your Privacy
AppLock - Protect Your Privacy
★3.2
AppLock PRO
AppLock PRO
★4.3
Pin Lock Screen
Pin Lock Screen
★4.0
AppLock Master
AppLock Master
★4.4
AppLock
AppLock
★4.2
Incoming Call Lock
Incoming Call Lock
★4.3
Master Lock Vault Home
Master Lock Vault Home
★4.2
AppLock - Time Password
AppLock - Time Password
★4.1
App Lock - Preventing Intruder
App Lock - Preventing Intruder
★5.0