Use cases:
Customer service
Lead generation
Recruiting
Serving content

Main differences in use cases:
Fully-chat-bot powered 24/7
Vs. A conversation starter…
Vs. After-hours only with an option to schedule something with a human the next day or continue with the bot experience.

A few big tools to checkout:
Meya.ai – for creating and deploying custom bots into other applications (like Intercom)
Manychat / Chatfuel – for Facebook Messenger chatbots.
Drift.com – for converting web traffic.
Landbot.io – for creating bot-based landing pages, or embedding bots into content.

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