How do instagram user's make their pictures lighter?

I've seen it so many times on instagram. Were people have their photo's lighter. I think it's super cute and I want to use that filter. I'm just not sure if it's only for iphone's cause I see the hashtag "iphoneography" all the time on the light photo's. I'm so confused someone please help me!

Try using the Instagram filters or you can also look for photo editing apps.

To make my photos lighter I have the app called ps express, and it has so many different things you can do to the photo, light make it brighter/lighter and lots of stuff. I think iphoneography is just a photo taken by an iPhone. Hope I helped!