How do people edit stuff on Instagram?

[Marina]

So like on Instagram and stuff people are making these edits of them and celebrities wearing flower crowns and hearts saying 'can u not' and stuff like that. I ask people what they use to make those and they never respond. Like some people call it kawaii and stuff idk but can you please tell me a name of an app that I can use to make those. Btw I need it for an iPhone

[Alban]

I don't have an Instagram personally, but I have a pretty good idea how to add all those extra things you can't do with just the Instagram app. My three sisters all have an Instagram and they all download these applications for there Instagram picture crops. They download so much that I bet some of them is what you may need.