What Plain does
Plain is AI support infrastructure for B2B teams, presented as the AI Support Stack built for B2B. Channels include Slack, Microsoft Teams, Discord, email, chat, and a portal. Sidekick is an AI assistant that researches, triages, and drafts replies within Plain. Ari runs AI agents alongside human teammates, and users can build their own agents. Workflows auto-route conversations, trigger investigations, notify teams, and take action in external systems, with Linear and PagerDuty named as examples. Insights detect trends, churn risks, and upsell potential, with thread summaries and daily digests. The page describes everything in Plain as extendable through its API. The page does not state any prices and offers Start a trial, Start for free, and Book a demo.
How Plain compares with its closest alternatives
4 of the 5 closest alternatives have a free plan, as Plain does. Among the 4 that list a starting price, the cheapest is Freshdesk AI at $15 a month and the median is $25. All 5 offer an API, as Plain does. Plain offers a web app. Of the alternatives, all 5 offer a web app. Plain was founded in 2022; the alternatives were founded between 2010 and 2022, 4 of them earlier. Plain is based in London, United Kingdom; none of its 5 alternatives is in the United Kingdom. They are in the United States, France and India.