Plain

What it is for

Plain is a hosted support-workspace desk: you open Threads, and Foundation starts at $45 / user / month billed annually (7-day trial, no card). Use it when the job is threads you start on a printed $ seat, not when you need a $20 chat seat.

What makes it unique: the cover is the official Plain Threads workspace (Todo / Display, Webhook setup T-147259, Annie Atkinson, Alex Sidekick reply) from the docs still — not a pricing card. The thread list itself is ops of Threads. Plain bills Foundation $45 / Horizon $99 per user / month (annual print), not a chat seat.

Key features

• Threads — a support conversation you assign and reply in (cover still; docs). One thread. Cover Webhook setup, Annie Atkinson, and the thread list sit here.
• Workflows — an automation you attach to a thread (cover “Workflow: First support assigned Alex”). A workflow, not a thread. Cover assignment is ops of this.
• Sidekick — the internal AI that drafts inside a thread (pricing Sidekick; cover Alex AT Agent). An agent, not a workflow. Cover “Hi Annie — happy to help” sits here.
• Help Center — the public help site you publish (pricing Help Center, Knowledge Base). A site, not a thread. Knowledge-base articles feed this and Sidekick — not a fifth desk.
• Integrations — Linear / Jira (and similar) you connect so a thread can open an issue (pricing). A connection, not a help-center page.

Credits (1,000 / month on Foundation) are the meter. Member vs viewer seats are the SKU. The API is install. Knowledge Base is ops of Help Center / Sidekick.

Who it's for

Best fit: product teams who will stay on Foundation at $45 / user / month billed annually (up to 5 member seats, 1,000 credits) while they open a first Threads list, then buy Horizon at $99 / user / month when they need more complex workflows.

Pricing

Verified 2026-10-23 (Asia/Shanghai) from plain.com/pricing. Title prints plans from $45 / user / month. Comparison table prints Foundation $45 / user / month billed annually / Horizon $99 / user / month billed annually / Frontier Custom. A Foundation card also prints $55 per user per month with Save 20% on annual. 7-day free trial. No credit card required.

• Foundation — $45 / user / month billed annually (monthly list prints $55). Up to 5 member seats. Unlimited viewer seats. 1,000 credits / month. Sidekick, Linear / Jira, Help Center, Knowledge Base. 7-day trial.
• Horizon — $99 / user / month billed annually. Minimum 3 member seats, up to 10. Dedicated customer success. More complex workflows.
• Frontier — Custom seats and SLAs. Do not invent a Frontier dollar.
• Startup program prints 50% off — confirm eligibility; do not treat it as a fourth tile.

Confirm checkout; taxes follow your location.

Limitations / costs

• Foundation annual $45 is a member seat, not unlimited humans. A sixth member is Horizon or Frontier. Viewers are unlimited but cannot run the desk.
• Credits are 1,000 / month on Foundation. Sidekick still meters.
• A support desk, not an incident commander. For Rootly’s $20 / user incident tile see Rootly.

Alternatives

• Rootly — incidents + on-call when the thread is a Pager, not a support ticket.
• Better Stack — uptime + status when you want Better Stack’s $ tile, not Plain Threads.
• Courier — notification routing when the “message” is a product notification, not a support thread.

Official tutorial

Official Plain channel video: How n8n built an AI-first support strategy with Plain (oEmbed author: Plain). First-party customer story on the official channel; the Threads still is the cover. n8n on the video is the customer, not a second listing.

Written path: plain.com/pricing plus the Threads still.

Website

https://www.plain.com

Repository

https://github.com/team-plain

Source

Catalog row curated for AI Tools Nav. Cover is the official Plain Threads workspace from the docs still. Dollars checked on plain.com/pricing (Foundation $45/user/mo annual / $55 monthly list; Horizon $99/user/mo annual; Frontier custom; 7-day trial). Tutorial oEmbed author: Plain.

Last verified

2026-10-23 (Asia/Shanghai) editorial check.