three application if you want to lock your whatsapp messages

the whatsapp application is one of the most used applications from smartphone users,so everyone of us wants to make his messages that are sent to him in this application so secure and won't be easy to reach them from any person that use your phone because sometimes we have to give someone our phone to use if its important  but the curiosity sometimes lead some people to go into your messages and read it which is a break into our privacy 
so in this topic we present to you three applications available on android system which afford you to put a password of your whatsapp conversations to avoid people to see them

1- WhatsApp Lock :
this application afford to you to put 4 digits pin code.when you install this application it require from you to put your code and this code will be required when you open whatsapp

2-Messenger Lock :

if you look for a password more complicated this application make you put different patterns to lock whatsapp

link of application 

3- Lock For WhatsApp :
  this is another application the same as messenger lock so you can put a pattern lock of pin code