How can i use Facebook instagram snapchat on my phone without being contented to the internet?

[Katie]

my friend has the same phone as me the Sony xperia L and she can use things like snapchat and instagram without being connected to the internet but when i try it it doesn't work ( it only works when i am connected to the internet ) I've tried being connected to the mobile data thing but that doesn't work.

can you help me please
thanks x

[Moiz]

not sure about snapchat but you can use instagram and you can take photos