Plain

A modern, API-first support platform for B2B software companies, covering email, Slack and chat.

PaidCustomer support and live chat software

Verified facts: 3 of 3
Alternatives ranked: 5
Approved reviews: 0
Visits sent from here: 0

About Plain

Plain is a customer support tool designed for B2B and technical companies. It brings support requests from email, shared Slack channels, chat and forms into one fast, keyboard-driven workspace, links them to customer and company records, and connects to issue trackers like Linear and Jira so engineering escalations stay in sync. Everything is exposed through a GraphQL API, so teams can build custom workflows, and its AI agent, Ari, answers questions and triages requests. It feels closer to modern developer tools than to classic help desks. The trade-offs are a higher entry price than SMB help desks, a focus on B2B that makes it a poor fit for high-volume consumer support, and a younger ecosystem. Plans are per user per month, billed annually for the best rate, with a short free trial. It runs in the browser. It suits B2B SaaS companies that support customers in Slack and want engineering-friendly tooling.

Best for: B2B SaaS teams that support customers in Slack and email and want an API-first tool.

What works

Handles shared Slack channels and email together
API-first, with Linear and Jira links
Fast, keyboard-driven interface

Why people leave

Higher entry price than SMB help desks
Not built for high-volume consumer support
Younger ecosystem

Top Plain alternatives

See all 5

1
Pylon
B2B support built around Slack channels, with account intelligence.
66.5
2
Intercom
Polished messenger and AI agent for in-app SaaS support.
62.6
3
Zendesk
Broader help desk with a large marketplace.
59.6
4
Front
Shared inbox for account teams handling long email threads.
57.2
5
Jira Service Management
Service desk tightly linked to Jira engineering work.
55.3

Why people left Plain

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Plain: common questions

Is Plain free?

No, Plain is a paid product. Starting price: $45 per user/month, billed annually (checked on Plain's own site).

Is Plain open source?

No, Plain is not open source.

What platforms does Plain run on?

Plain is available for Web.

What are the best alternatives to Plain?

The highest-ranked Plain alternatives right now are Pylon, Intercom and Zendesk. See the full ranked list for pricing, platforms and verified facts.

See all 5 Plain alternatives

Plain facts

3 of 3 verified

Starting price: $45 per user/month, billed annually; Checked Oct 25, 2026plain.com(opens source in a new tab); “Plans from $45/user/month”
Free trial: 7 days, no card required; Checked Oct 25, 2026plain.com(opens source in a new tab); “7-Day Free Trial”
Foundation plan: $55 monthly or $45 annually per user; Checked Oct 25, 2026plain.com(opens source in a new tab); “Start today, no credit card required Foundation $ 55 45 Save 20% per user per month Billed annually”