Slackmojis - A directory of the best custom slack emojis
Reface - The best AI app to face-swap in GIFs and videos
Discord Emoji - Iconfinder, but for emoji.
Photo Face Swap - Photo Face Swap app lets you swap faces from your pictures with a single tap.
Emoji Builder - Create your own emoji in no time 💨
Face Live Camera - Face Live Camera: Photo Filters, Emojis, and Stickers is an amazing photography app developed and published by Lyrebird Studio for Android and iOS devices.