Open the Messages app
Tap a conversation or start a new one
Tap the App Store icon next to the text field
Tap the #images icon
Search for a GIF
Tap the GIF you want to send
Tap Send
Open Safari or another browser
Search for a GIF website
Find the GIF you want
Tap and hold the GIF
Tap Save to Photos
Open the Photos app
Find the saved GIF
Tap Share if needed
Send it through Messages, Mail, or another app
Open a third-party GIF app
Search for a GIF
Copy or share the GIF
Paste or send it in your app