MessMoji - Emoji stickers for iMessages
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Dango - Use emoji, stickers & gifs faster 😄 💬
Live Chat by Sumo.com - Instantly communicate with customers, prospects & visitors
Neural Network Generated Illustrations - Create a personalized sticker pack in Allo
GoSquared Live Chat - Beautiful, simple, and free live chat for your website