Plain starts at $35/month on the Foundation plan.
Verified Sep 2026 from the official pricing page.
Is Plain worth the price?
Plain's pricing is on the higher side compared to some market alternatives, especially the jump from Foundation at $35/month to Horizon at $269/month.
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
$269 / 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 5 direct competitors offer a free plan.
| Tool | Starting price | Free plan |
|---|---|---|
| Plain | $35/month, billing unit not specified | No |
| Chatwoot | $19/month, billing unit not specified | Yes |
| Kustomer | $89/user/month | No |
| Gladly | $0.60/month, billing unit not specified | No |
| Bodhi | $495/month, billing unit not specified | Yes |
| Freshdesk Success | No public price | No |
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 $269/month.
Does Plain have a free plan?
Plain does not offer a permanent free plan. A free trial is available.
Does Plain offer a free trial?
Yes. Plain offers a free trial.
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/month, billing unit not specified; Kustomer starts at $89/user/month; Gladly starts at $0.60/month, billing unit not specified.
Plain alternatives
Direct competitors. Starting prices match the table above.
Sources
- Official Plain pricing: plain.com/pricing (verified Sep 2026)
- Cite this data: Toolradar, Plain pricing verified Sep 2026, toolradar.com/tools/plain/pricing
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