I love Atlasmic! One of the few live chat apps that deeply integrate with Shopify and is easy to use. Helped my shop grow a lot over the last few months. There's nothing like it and their support is amazing - highly recommend!
Really modern live chat app - one of the best! Great integration with Shopify - super useful to be able to see customer contacts and orders when responding to customer questions. And also, the chat app looks awesome on my store.