Open the Google app or Safari
Go to images.google.com
Tap the camera or Lens icon
Choose Take photo, Upload from Photos, or Paste image URL
Select or capture the image
Review the search results
Use the Photos app
Open the image
Tap Share
Tap Search with Google Lens if available
Use Safari with a desktop site if needed
Open a search engine that supports image search
Upload the image from your iPhone
Use the Files app for saved images
Open the image file
Share it to a browser or Lens app
Install the Google app if Lens is not available
Use Google Lens directly from the app
Save the image first if it is in Messages or Mail
Long-press the image and save it to Photos
Then upload it for image search