Tag a picture and later find it easily

You can add a text with a caption to a photo, if you open the Info for a photo. Write your tag to the start of the caption you type in. Then you can search for this tag.

To see saved metadata information about a photo or video, open it, then tap  or swipe up. Now you can enter a caption.

I wonder if you tried the search right after entering the caption-- I know from having done that, that it takes awhile of Photos to catalog the words for search to work. I've had good luck using the captions for searches.

The search words should be as near the beginning of the caption as makes sense. I mean, instead of "This is a lovely Gorilla at the zoo," better is "Gorillas at zoo, lovely!" Or like that. The first couple of hundred characters respond to search, apparently.

djomlica wrote:... It didn't work right after I put the caption, but now after a few days it finds a photo by a caption I have put in. So it probably takes some time for the system to start working, as you sad.

Great! You're right, Photos has to scan the Library and fill in its table of words. I think that it usually takes less than a few days, though...