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Plain pricing

Plain is an AI-powered support infrastructure platform for B2B teams that consolidates customer support channels like Slack, Microsoft Teams, email, and in-app chat into a unified workspace. It enables orchestration of AI agents and human agents to triage, research, and resolve support requests, automate workflows, and generate insights from support interactions. The platform offers extensible APIs, AI assistants, and integrations with CRM and issue tracking tools to help teams scale support operations efficiently.

Region
US
Source currency
USD
Audiences
Enterprise, Mid-market, and Small business

Plans and public prices

Canonical pricing source
Plan Pricing Charged by Offer type
Foundation
USD 35 / month with annual commitment

$35 /month 1 seat + $35/additional seats. $35/month, billed yearly

 Seat · 1 seat + $35/additional seats Standalone · Fixed
Horizon
USD 299 / month with annual commitment

$299 /month 3 seats + $99/additional seats. $299/month, billed yearly

 Seat · 3 seats + $99/additional seats Standalone · Fixed
Frontier
Contact sales

Custom Flexible pricing suited for you

 Other Standalone · Contact sales

What each plan includes

Feature names follow Plain’s own pricing page. Check the wording before treating features from different vendors as like-for-like.

Foundation

AI features

Credits included

2,000/mo

Included
Ari AI agent

included

Included
Sidekick AI assistant
Included
Reporting themes
Excluded
AI suggested responses
Excluded
Lookup with Cursor
Excluded

Users

User seats

Up to 5

Included

Channels

Slack

25 channels

Limited
Email

2 addresses

Limited
In-app channels
Included
Microsoft Teams
Excluded
Discord
Excluded

Extensibility

Linear, Jira integrations
Included
AI workflows

Up to 5

Limited
SLAs and Business hours
Excluded
Escalation paths
Excluded
CRM integrations
Excluded

Help Center

Help Center, Knowledge Base

1

Limited
Ask AI

1

Limited
Customer inbox

1

Limited

Data-driven support

Customer cards
Included
Customer card realtime

12h cache

Limited
Reporting

7 days

Limited

Onboarding

Onboarding process

Self-serve

Included
Plain support

Email + chat

Included
Dedicated CSM
Excluded

Services and compliance

SSO and SCIM
Excluded

Horizon

AI features

Credits included

15,000/mo

Included
Reporting themes
Included
AI suggested responses
Included
Lookup with Cursor
Excluded

Users

User seats

Up to 10

Included

Channels

Slack

Unlimited

Included
Email

10 addresses

Limited
Microsoft Teams
Included
Discord
Excluded

Highlights

Everything in Foundation
Included

Extensibility

SLAs and Business hours
Included
Escalation paths
Included
CRM integrations
Included
Workflows

Unlimited

Included

Onboarding

Priority support via Slack
Included
Onboarding process

Self-serve

Included
Plain support

Slack, email + chat

Included
Dedicated CSM
Excluded
White glove onboarding
Excluded

Help Center

Help Center, Knowledge Base

Unlimited

Included
Ask AI

Unlimited

Included
Customer inbox

Unlimited

Included

Data-driven support

Customer card realtime

15s

Included
Reporting

All time

Included

Services and compliance

SSO and SCIM
Excluded

Frontier

AI features

Credits included

Custom

Included
Lookup with Cursor
Included
Custom AI + bring your own agent
Included

Users

User seats

Custom

Included

Channels

Slack

Unlimited

Included
Email

25 addresses

Limited
Discord channels
Included

Highlights

Everything in Horizon
Included

Extensibility

Custom workspaces
Included
Workflows

Unlimited

Included

Services and compliance

Custom contracting
Included
Advanced security
Included
SSO and SCIM
Included

Onboarding

Dedicated CSM + white glove onboarding
Included
Onboarding process

White glove

Included
Plain support

Dedicated CSM

Included

Help Center

Help Center, Knowledge Base

Unlimited

Included
Ask AI

Unlimited

Included
Customer inbox

Unlimited

Included

Data-driven support

Customer card realtime

15s

Included
Reporting

All time

Included

How pricing changed

Each date shows when a public price was observed, not when it took effect. Archived captures may reflect the region or currency served at the time, so a currency change is not necessarily a price increase.

Observed Plans and prices Source wording Source
  • Foundation: USD 35 / month with annual commitment
  • Horizon: USD 299 / month with annual commitment
  • Frontier: Contact sales
  • $35 /month 1 seat + $35/additional seats. $35/month, billed yearly
  • $299 /month 3 seats + $99/additional seats. $299/month, billed yearly
  • Custom Flexible pricing suited for you
Official pricing page
  • Foundation — default: USD 35 monthly · USD 35 / month with annual commitment
  • $35/month, billed yearly
Official pricing page

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