Are emoji-stickers the same as regular emojis?

No, stickers or emoji-stickers are not the same as regular emojis. Regular emojis (unicode emojis) are part of the operating system and can only be handled by the manufacturer of the operating system (i.e. Apple, Google). Stickers or emoji-stickers are sent as small images, so the receiver doesn’t have to have the stickers app (FootballEmojis app) installed.