To delete any unwanted iMessage Sticker apps
Follow following steps
- Open iMessage App
- Tap on “+” button at bottom left corner
- Tap on Stickers
- Tap on Edit button on top right corner
- In Sticker List screen Tap on Edit button on top left corner
- Delete the app you don’t want to have.
We have shown our “Love Stickers – Ora and Omi” in above screenshot.
You can find it on iMessage Appstore
https://apps.apple.com/us/app/love-stickers-ora-and-omi/id6755204092