Ask HN: How do you view/edit photo metadata on your iPhone?

Hello guys We are developing an app and we are interested how do you view/edit the basic metadata(such as location, date, time,orientation, keywords, device) embedded in the photos on your iPhone? What do you think of the privacy issues that come along with the metadata? Is this important to you at all? If yes then how do you handle it? Any feedback is highly appreciated! Thanks a lot!