Is Instagram safe and how does it work?

[Cap09]

I got the instagram app on my cellphone but,they want me to make an account.
Is instagram safe?Like will the whole world see the photos I take? Or do I have to post it on Facebook or twitter in order to see it?
Please tell me how this whole instagram app works, thanks!

[Ni Hao]

Basically, it's a photo sharing app. You take photos with your phone, post them on instagram, and your followers and whoever visits your profile will see it and "like it" if they like it. You can follow other people and see what photos they upload, and other people can follow you. There is an option to make your photos private, so you don't have to worry about the whole world seeing your photos. Its perfectly safe and lots of fun! That's mostly it about instagram. Enjoy!