Here's why captions are powerful:
Imagine taking a picture of something that you need to reference later. Maybe it's meeting notes, a menu, your ID, your vaccination card, a screenshot, or something else that you need to find quickly. Now imagine that photo living in a sea of thousands of other photos. It's impossible to find.
You can use the new Add a Caption feature to add keywords to a photo's caption so that you can quickly search for it. For instance, caption the words "driver license ID card" to a photo of your ID, and then you can search for any of those words in the app to quickly find it. You can do this for any photo! The conveniences are endless.
To search for the photo, simply tap the Search button at the bottom of the screen, type in a keyword that's in the caption, and the photo will show up in the search results!