Can I add tags to photos on iPhone?

AFAIK there never has been a tag option, in the default iPhone Photos app, until now (iOS 12.1, March 2019). However, there are alternative apps you can download that have you the option to add tags to your photos. I use HashPhotos now, because tags is a free option in this app.

For More Information Please Refer: https://www.quora.com/Is-there-any-way-to-tag-pictures-on-an-iPhone