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Customer Support · head to head

Plain vs Document360

Plain logo

Plain

Customer Support

AI support infrastructure built for B2B teams

From
$35/month
Rated
-
Full reviewWebsite
Document360 logo

Document360

Customer Support

Self-service knowledge base software for product documentation

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Plain foundation plan limited to 2,000 credits per month may be restrictive for high-volume teams; Document360 no published flat-rate pricing makes it hard to compare costs upfront against competitors.
  • They diverge on capability: Plain covers Multi-channel consolidation, Document360 covers Category Manager.

Where they differ

Only the attributes on which Plain and Document360 actually diverge.

Attributes where Plain and Document360 differ
AttributePlainDocument360
Starting price$35/monthOn request
Pricing modelTiered pricing per seat with credit systemquote
PlatformsWeb, APIweb

Identical on both: free tier (No), user rating (Not yet rated), category (Customer Support).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Plain

  • Multi-channel consolidation
  • AI agents
  • Workflow automation
  • Sidekick assistant
  • Insights engine
  • Linear and Jira integration
  • Help Center and Knowledge Base
  • API-first extensibility

Only in Document360

  • Category Manager
  • Eddy AI
  • Article Revision History
  • SSO & Role-Based Access
  • Analytics
  • Multi-language Support
  • API Documentation Tools

What people use each for

The jobs each tool is most often brought in to do.

Plain

  • Consolidating support from multiple channels into one inboxnot Document360
  • Automating support workflows with AI agentsnot Document360
  • Extracting insights and trends from customer conversationsnot Document360
  • Building custom support solutions with API accessnot Document360
  • Implementing AI-assisted customer support at scalenot Document360

Document360

  • Product and API documentationnot Plain
  • Internal knowledge managementnot Plain
  • Customer self-service supportnot Plain
  • Multi-language documentation portalsnot Plain

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Plain

  • Foundation plan limited to 2,000 credits per month may be restrictive for high-volume teams
  • Pricing increases significantly from Foundation to Horizon ($35 to $299 per month)
  • No published pricing for Frontier (custom) plan
  • Additional seat costs ($99 per seat) add up for larger teams
  • Credit-based system requires monitoring usage to avoid overages

Document360

  • No published flat-rate pricing makes it hard to compare costs upfront against competitors.
  • Requires a sales quote process rather than instant self-service signup for paid plans.
  • Advanced AI features are usage-metered and may require additional purchases.
  • Smaller teams may find the enterprise-oriented feature set more complex than needed.

Pricing, plan by plan

Plain

$35/month
  • Foundation$35/month
    • 2,000 credits per month
    • Slack and email channels
    • Ari AI agent
  • Horizon$299/month
    • 15,000 credits per month
    • All Foundation features
    • Microsoft Teams integration
  • Frontier$null/custom
    • Custom credit allowance
    • All Horizon features
    • Discord channels

Document360

On request
  • Custom$undefined/month
    • Team accounts
    • Workspaces
    • Languages

Which should you pick?

Choose Plain if

  • You need multi-channel consolidation.
  • You work on Web, API.
  • You also want ai agents.
Plain review

Choose Document360 if

  • You need category manager.
  • You work on web.
  • You also want eddy ai.
Document360 review

Questions people ask

Is Plain or Document360 better?
Neither clearly leads. Plain starts at $35/month and Document360 at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Plain or Document360?
Plain starts at $35/month and Document360 at On request.
Does Plain or Document360 run on more platforms?
Plain runs on Web, API. Document360 runs on web.
What is Plain best used for?
Plain is most often used for consolidating support from multiple channels into one inbox, automating support workflows with ai agents, extracting insights and trends from customer conversations, building custom support solutions with api access. Of those, consolidating support from multiple channels into one inbox and automating support workflows with ai agents are not what Document360 is typically brought in for.
What can Plain do that Document360 cannot?
Plain covers Multi-channel consolidation, AI agents, Workflow automation, Sidekick assistant. Document360 covers Category Manager, Eddy AI, Article Revision History, SSO & Role-Based Access.

Answered from the vendors’ own pages

Plain: What is included in the Foundation plan?

The Foundation plan ($35/month per seat) includes 2,000 credits per month, support for Slack and email, Ari AI agent, Linear and Jira integrations, and Help Center access. Up to 5 seats are included.

Source
Document360: How is Document360 pricing determined?

Pricing is customized rather than tiered flat-rate, based on team accounts, workspaces, languages, SSO/security needs, knowledge base privacy model, and AI Suite usage.

Source
Plain: Can I use Plain with Microsoft Teams?

Yes, Microsoft Teams integration is available on the Horizon plan ($299/month) and higher.

Source
Document360: Is there a free trial?

Yes, Document360 offers a 14-day free trial with full feature access and no credit card required.

Source
Plain: Is there a free trial for Plain?

Yes, Plain offers a 7-day free trial with no credit card required. You can also get 50% discount through their startup program.

Source
Document360: What compliance and security features are included?

All plans include SOC 2 Type II compliance, SSL encryption, and security features such as roles, permissions, and SSO.

Source
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