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CRM · head to head

Affinity vs Plain

Affinity logo

Affinity

CRM

Relationship intelligence platform for professionals

From
$2000/year
Free plan
No
Full reviewWebsite
Plain logo

Plain

Customer Support

AI support infrastructure built for B2B teams

From
$35/month
Free plan
No
Full reviewWebsite

The short version

  • Each has a real cost: Affinity enterprise tier requires custom quote, pricing not transparent; Plain foundation plan limited to 2,000 credits per month may be restrictive for high-volume teams
  • They diverge on capability: Affinity covers Contact management, Plain covers Multi-channel consolidation.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Affinity and Plain actually diverge.

Attributes where Affinity and Plain differ
AttributeAffinityPlain
Starting price$2000/year$35/month
Pricing modelsubscriptionTiered pricing per seat with credit system
PlatformsWebWeb, API
CategoryCRMCustomer Support
Founded2013Unknown

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

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 Affinity

  • Contact management
  • Deal tracking
  • Intelligence engine
  • Relationship mapping
  • Integration aggregation
  • Gmail
  • Outlook
  • LinkedIn

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

What people use each for

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

Affinity

  • Deal sourcing and pipeline management for venture capital and private equitynot Plain
  • Automatic capture of email and meeting activity into relationship recordsnot Plain
  • Finding warm introductions through existing relationship networksnot Plain
  • Investor relations and fundraising trackingnot Plain
  • Portfolio company support and reportingnot Plain

Plain

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

Where each one falls short

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

Affinity

  • Enterprise tier requires custom quote, pricing not transparent
  • Scale tier API calls capped at 100000 per month
  • All plans charge per user annually

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

Pricing, plan by plan

Affinity

$2000/year
  • Essential$2000/year
    • Activity capture (email and calendar)
    • Relationship scoring and interaction history
    • Deal pipeline tracking
  • Scale$2300/year
    • Automatic meeting capture (Notetaker)
    • AI Chat conversational access
    • Affinity Ascend agent platform
  • Advanced$2700/year
    • Third-party data enrichment (PitchBook, Dealroom, Crunchbase)
    • Company growth insights
    • Packaged integrations (Slack, Salesforce, Box)
  • Enterprise$null/year
    • Fund-level permissions
    • Enterprise SSO
    • Custom data retention

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

Which should you pick?

Choose Affinity if

  • You need contact management.
  • You also want deal tracking.
Affinity review

Choose Plain if

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

Questions people ask

Is Affinity or Plain better?
Neither clearly leads. Affinity starts at $2000/year and Plain at $35/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Affinity or Plain?
Affinity starts at $2000/year and Plain at $35/month.
Does Affinity or Plain run on more platforms?
Affinity runs on Web. Plain runs on Web, API.
What is Affinity best used for?
Affinity is most often used for deal sourcing and pipeline management for venture capital and private equity, automatic capture of email and meeting activity into relationship records, finding warm introductions through existing relationship networks, investor relations and fundraising tracking. Of those, deal sourcing and pipeline management for venture capital and private equity and automatic capture of email and meeting activity into relationship records are not what Plain is typically brought in for.
What can Affinity do that Plain cannot?
Affinity covers Contact management, Deal tracking, Intelligence engine, Relationship mapping. Plain covers Multi-channel consolidation, AI agents, Workflow automation, Sidekick assistant.

Answered from the vendors’ own pages

Affinity: How much does Affinity CRM cost per user?

Affinity CRM pricing starts at 2000 USD per user per year for the Essential plan, 2300 USD for Scale, and 2700 USD for Advanced. Enterprise tier requires custom pricing.

Source
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
Affinity: What is the API call limit on Affinity's Scale tier?

The Scale and Advanced tiers provide 100000 API calls per month. Enterprise tier customers receive unlimited API access.

Source
Plain: Can I use Plain with Microsoft Teams?

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

Source
Affinity: Which Affinity tier includes Notetaker and MCP integration?

The Scale tier (2300 USD per user per year) includes automatic meeting capture via Notetaker and Model Context Protocol server integration for AI tool connections.

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
Affinity: When does Affinity offer Enterprise SSO capabilities?

Enterprise SSO (single sign-on) capability is included only in the Enterprise tier, which requires custom pricing and is designed for established firms with multi-fund complexity.

Source
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