It’s the app that can change animated images like .gif / .webp / .mp4 to be a sticker. You can collect as many as you want from online resource like Giphy or Tenor by searching keywords.
and If you want to make your photos be stickers, Animated Sticker Maker helps you add the funny captions animated stickers.
To have the sticker packs made by other users, you can add them to your WhatsApp with one click.