Plain starts at $35/month on the Foundation plan.
Verified Nov 2026 from the official pricing page.
Is Plain worth the price?
The per-seat pricing for additional users also escalates significantly.
It's best for B2B teams prioritizing advanced AI capabilities and deep integrations over budget constraints.
Pricing Plans
Free TrialFoundation
$35 / month
- 1 seat + $35/additional
- Slack, email, in-app channels
- Ari AI agent included
- Linear, Jira integrations
- Customer cards
- AI workflows
- Get help via email + chat
Horizon
$99 / user/month
- 3 seats + $89/additional
- All Foundation features +
- Microsoft Teams and Discord channels
- SLAs and Business hours
- Escalation paths
- Help Center, Knowledge Base
- CRM integrations
- Reporting themes
- AI suggested responses
- Priority support via Slack
Frontier
Custom
- Custom seats
- All Horizon features +
- Custom AI + bring your own agent
- Sidekick AI assistant
- Lookup with Cursor
- Custom workspaces
- Custom contracting
- Advanced security
- SSO and SCIM
- Dedicated CSM + white glove onboarding
Hidden Costs & Gotchas
Additional seats are $35/month on Foundation.
Additional seats are $89/month on Horizon.
How Plain compares
2 of 4 direct competitors offer a free plan.
Plain Pricing FAQ
How much does Plain cost?
Plain starts at $35/month on the Foundation plan. It offers 2 paid tiers ranging from $35/month to $99/user/month.
Does Plain have a free plan?
Plain does not offer a permanent free plan. A free trial is available for 14 days.
Does Plain offer a free trial?
Yes. Plain offers a free trial lasting 14 days.
What is the cheapest Plain paid plan?
The cheapest paid plan for Plain is "Foundation" at $35/month. Key features include: 1 seat + $35/additional, Slack, email, in-app channels, Ari AI agent included.
What are alternatives to Plain?
Alternatives to Plain include Chatwoot, Kustomer, Gladly, Bodhi. Chatwoot starts at $19/agent/month; Kustomer starts at $89/user/month; Gladly starts at $0.60/month, billing unit not specified.
How much does Plain cost for a team of 10?
For 10 users on the Horizon plan, Plain is $990/month, or $11,880/year, at the published per-user rate.
Does Plain have a promo code or discount code?
As of November 2, 2026, Toolradar has no Plain promo code, coupon or discount code on file. Plain's own pricing page (https://plain.com/pricing, read November 2, 2026) does list a 14-day free trial, so you can start without a code. Offers change, so confirm the terms at checkout.
Plain alternatives
Direct competitors. Starting prices match the table above.
Sources
- Official Plain pricing: plain.com/pricing (verified Nov 2026)
- Cite this data: Toolradar, Plain pricing verified Nov 2026, toolradar.com/tools/plain/pricing
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