How can I improve the camera/photo quality on my iPhone 6s Plus?

A few of my coworkers have the iphone 7 Plus and their portraits always look amazing. Is there a lens that attaches to my phone I could purchase to improve the quality of portrait pictures? I take a lot of pictures of my friends and I when we go out.

There's no magical lens or app that can improve the quality of your camera, that's just physically impossible. There are apps and lenses to allow different things that you can't normally do such as macro lenses, fish eye or different colour correction but nothing will change the pixel density of your photos other than a better camera

Get a good app e.g vsco cam takes very good ones. Also clean your camera before you take a picture make sure uve good lighting etc. I have a iphone7 plus and I generally don't think it's different to the 6 appart from like the zooming in and the focus it has etc but the 6 is just as good when you know how to use it

IPhone camera sucks. I hate my camera on my iPhone.

If you are trying to replicate the 7 Plus' Portrait Mode, I doubt anything like a lens would help there. That's mostly software based as well as the dual cameras on the 7 Plus working together. The 6s Plus simply doesn't have that hardware necessary.

No need to improve the camera. All you have to do is to look for filter that fits for your own preferences.

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