Sticker.ly

The app Sticker.ly offers a quick and easy way to make your very own WhatsApp sticker packs. Simply create a name for your pack and then use the images in your gallery to create as many stickers as you want.

And with Sticker.ly, it's easy to add new stickers to your pack. Just choose an image to add, then swipe to crop it, or let the app's facial recognition technology automatically crop the face in the image. After that, you can edit the sticker if necessary, and add text. It's easy to create tons of stickers and add them to your sticker packs. And the best part? It only takes a few seconds.

Once you've finished your custom sticker pack, it just takes a tap to add it to your WhatsApp client. You can then use your custom stickers in any conversation, and share them with your friends so they can save them in their own sticker gallery.

Overall, Sticker.ly is one of the best options available on Android to create custom WhatsApp stickers. On top of all that, this app is backed by Snow, Inc, the developers of the other great apps such as the photo editor B612.