Plain vs Smartsupp

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Plain

See full pricing history

USD · US · source: www.plain.com

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

Smartsupp

See full pricing history

USD · US · source: www.smartsupp.com

Plan	Pricing	Charged by	Offer type
Free — Customer Service	Free Free $0	Flat	Standalone · Free
Solo — Customer Service	USD 17 / month with annual commitment $17 / month billed annually · Save $85 / year	Flat	Standalone · Fixed
Plus — Customer Service Highlighted	USD 25 / month with annual commitment $25 / month billed annually · Save $127 / year	Flat	Standalone · Fixed
Expert — Customer Service	USD 83 / month with annual commitment $83 / month billed annually · Save $421 / year	Flat	Standalone · Fixed
Ultimate Enterprise — Customer Service	USD 280 monthly Starts at $280 /month	Flat	Standalone · Starting at
Mira AI Agent — Mira AI Agent	USD 16 / month with annual commitment $16 / month 100 conversations / month billed annually · Save $48 / year	Usage · 100 conversations / month	Standalone · Starting at
Unlimited AI Agents — Mira AI Agent	Contact sales Let's talk	Flat	Standalone · Contact sales

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Plain

Foundation

AI features Credits included: 2,000/mo

Included
Users User seats: Up to 5

Included
Channels Slack: 25 channels

Limited
Channels Email: 2 addresses

Limited
Channels In-app channels: Included
Channels Microsoft Teams: Excluded
Channels Discord: Excluded
AI features Ari AI agent: included

Included
AI features Sidekick AI assistant: Included
Extensibility Linear, Jira integrations: Included
Help Center Help Center, Knowledge Base: 1

Limited
Help Center Ask AI: 1

Limited
Help Center Customer inbox: 1

Limited
Data-driven support Customer cards: Included
Data-driven support Customer card realtime: 12h cache

Limited
Extensibility AI workflows: Up to 5

Limited
Onboarding Onboarding process: Self-serve

Included
Onboarding Plain support: Email + chat

Included
Extensibility SLAs and Business hours: Excluded
Extensibility Escalation paths: Excluded
Extensibility CRM integrations: Excluded
AI features Reporting themes: Excluded
AI features AI suggested responses: Excluded
Data-driven support Reporting: 7 days

Limited
AI features Lookup with Cursor: Excluded
Services and compliance SSO and SCIM: Excluded
Onboarding Dedicated CSM: Excluded

Horizon

AI features Credits included: 15,000/mo

Included
Users User seats: Up to 10

Included
Channels Slack: Unlimited

Included
Channels Email: 10 addresses

Limited
Channels Microsoft Teams: Included
Channels Discord: Excluded
Highlights Everything in Foundation: Included
Extensibility SLAs and Business hours: Included
Extensibility Escalation paths: Included
Extensibility CRM integrations: Included
AI features Reporting themes: Included
AI features AI suggested responses: Included
Onboarding Priority support via Slack: Included
Help Center Help Center, Knowledge Base: Unlimited

Included
Help Center Ask AI: Unlimited

Included
Help Center Customer inbox: Unlimited

Included
Extensibility Workflows: Unlimited

Included
Data-driven support Customer card realtime: 15s

Included
Data-driven support Reporting: All time

Included
Onboarding Onboarding process: Self-serve

Included
Onboarding Plain support: Slack, email + chat

Included
AI features Lookup with Cursor: Excluded
Services and compliance SSO and SCIM: Excluded
Onboarding Dedicated CSM: Excluded
Onboarding White glove onboarding: Excluded

Frontier

AI features Credits included: Custom

Included
Users User seats: Custom

Included
Channels Slack: Unlimited

Included
Channels Email: 25 addresses

Limited
Channels Discord channels: Included
Highlights Everything in Horizon: Included
AI features Lookup with Cursor: Included
Extensibility Custom workspaces: Included
Services and compliance Custom contracting: Included
Services and compliance Advanced security: Included
Services and compliance SSO and SCIM: Included
AI features Custom AI + bring your own agent: Included
Onboarding Dedicated CSM + white glove onboarding: Included
Onboarding Onboarding process: White glove

Included
Onboarding Plain support: Dedicated CSM

Included
Help Center Help Center, Knowledge Base: Unlimited

Included
Help Center Ask AI: Unlimited

Included
Help Center Customer inbox: Unlimited

Included
Extensibility Workflows: Unlimited

Included
Data-driven support Customer card realtime: 15s

Included
Data-driven support Reporting: All time

Included

Smartsupp

Free — Customer Service

Operators Operators: 1

Included
Number of websites Number of websites: 1

Included
Conversations history Conversations history: 14 days

Limited
Conversations volume Conversations volume: 25 conversations per month

Limited
Communication channels Live chat: Included
Communication channels Facebook Messenger: Included
Communication channels WhatsApp: Included
Communication channels Connected e-mail addresses: Excluded
AI Reply Assists AI Reply Assists: Excluded
Basic features Personal shortcuts: 1

Limited
Automated workflows & messages Automatic Messages: 1 message template

Limited
Automated workflows & messages Automation Workflows: Excluded
MCP & API MCP & API: Excluded
Services Premium support: Excluded

Solo — Customer Service

Operators Operators: 1

Included
Number of websites Number of websites: 1

Included
Conversations history Conversations history: 1 year

Included
Conversations volume Conversations volume: unlimited

Included
Communication channels Live chat: Included
Communication channels Facebook Messenger: Included
Communication channels WhatsApp: Included
Communication channels Connected e-mail addresses: 3 email addresses

Included
Automated workflows & messages Basic automated messages: Included
AI Reply Assists AI Reply Assists: 50 / month

Limited
Basic features Personal shortcuts: unlimited

Included
Automated workflows & messages Automatic Messages: unlimited

Included
Automated workflows & messages Automation Workflows: Excluded
MCP & API MCP & API: Excluded
Services Premium support: Excluded

Plus — Customer Service

Operators Operators: 3

Included
Number of websites Number of websites: 1

Included
Conversations history Conversations history: 1 year

Included
Conversations volume Conversations volume: unlimited

Included
Communication channels Live chat: Included
Communication channels Facebook Messenger: Included
Communication channels WhatsApp: Included
Communication channels Connected e-mail addresses: 10 email addresses

Included
Automated workflows & messages Automated workflows: Included
MCP & API MCP & API: Included
AI Reply Assists AI Reply Assists: 250 / month

Limited
Basic features Personal shortcuts: unlimited

Included
MCP & API API Tokens: 10

Included
MCP & API Webhooks: 1

Included
Services Premium support: Excluded

Expert — Customer Service

Operators Operators: 5+ (upgradable)

Included
Number of websites Number of websites: 3

Included
Conversations history Conversations history: 3 years

Included
Conversations volume Conversations volume: unlimited

Included
Communication channels Live chat: Included
Communication channels Facebook Messenger: Included
Communication channels WhatsApp: Included
Communication channels Connected e-mail addresses: 50 email addresses

Included
Automated workflows & messages Automated workflows: Included
Services Premium support: Included
MCP & API MCP & API: Included
AI Reply Assists AI Reply Assists: 500 / month

Limited
Basic features Personal shortcuts: unlimited

Included
MCP & API API Tokens: 25

Included
MCP & API Webhooks: 3

Included

Ultimate Enterprise — Customer Service

Operators Operators: custom

Included
Number of websites Number of websites: Custom limit

Included
Conversations history Conversations history: 3 years

Included
Conversations volume Conversations volume: unlimited

Included
Communication channels Connected e-mail addresses: custom limit

Included
Highlights Individual limits: Included
Highlights Custom setup and integrations: Included
Services Dedicated account manager: Included
MCP & API API & data exports: Included
Highlights Payment via wire transfer: Included
AI Reply Assists AI Reply Assists: Custom limit

Included
Services Premium support: Included

Mira AI Agent — Mira AI Agent

Core features Number of AI agents: 1 AI Agent

Included
Core features Conversations / month: 100, upgradable to 5 000

Limited
Highlights Working 24/7: Included
Knowledge Knows up to 30 000 products: up to 30 000 products

Included
Knowledge Website scrape: 20 content pages

Limited
Core features Your voice, your rules: Included
Other Handover to human agent: Included
Core features Answering FAQs: Included
Core features Recommending products: Included
Core features Multi-language support: Included
Knowledge Custom questions: 30

Limited
Support Premium onboarding support: Excluded

Unlimited AI Agents — Mira AI Agent

Core features Number of AI agents: Unlimited AI Agents

Included
Core features Conversations / month: custom

Included
Highlights Working 24/7: Included
Knowledge Independent knowledge per agent: Included
Knowledge Custom memory size: custom

Included
Other Handover to human agent: Included
Knowledge Website scrape: custom

Included
Knowledge Product feed: custom

Included
Knowledge Custom questions: custom

Included
Support Premium onboarding support: Included

How their prices changed

Each date shows when a public price was observed, not when it took effect. An archived region or currency can differ, so a currency change is not necessarily a price increase.

Plain

September 21, 2026
Official pricing page
- Foundation: USD 35 / month with annual commitment
- Horizon: USD 299 / month with annual commitment
- Frontier: Contact sales
August 27, 2026
Official pricing page
- Foundation — default: USD 35 monthly · USD 35 / month with annual commitment

Smartsupp

September 21, 2026
Official pricing page
- Free — Customer Service: Free
- Solo — Customer Service: USD 17 / month with annual commitment
- Plus — Customer Service: USD 25 / month with annual commitment
- Expert — Customer Service: USD 83 / month with annual commitment
- Ultimate Enterprise — Customer Service: USD 280 monthly
- Mira AI Agent — Mira AI Agent: USD 16 / month with annual commitment
- Unlimited AI Agents — Mira AI Agent: Contact sales
August 27, 2026
Official pricing page
- Free: Free