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Stammer vs Plain
Side-by-side comparison of features, pricing, and ratings
Pricing
Freemium
Contact Sales
Plans
$197/mo
$497/mo
Custom Pricing
$35/month (1 seat) + $35/additional seat
$299/month (3 seats) + $99/additional seat
Custom pricing
Popularity
2.7k views
6.8k views
Skill Level
Beginner-friendly
Advanced
API Available
Platforms
WebAPI
WebAPIPlugin
Categories
📈 Marketing & SEO💬 Customer Support🤖 Automation & Agents
💬 Customer Support🤖 Automation & Agents
Features
White-label AI chat agents
White-label AI voice agents
No-code agent builder
Website chatbot embed
Instagram DM integration
Facebook Messenger integration
WhatsApp integration
Phone call handling (inbound/outbound)
Automated lead qualification
Appointment booking (Google Calendar, Calendly, Cal.com)
Human hand-off
Client portal with analytics
Rebrandable API
99.9% uptime SLA
14-day free trial (no credit card)
Consolidate Slack, MS Teams, Discord, email, chat, and portal
AI assistant Sidekick drafts replies and search knowledge
Built-in AI agent Ari for triage and investigation
Run multiple custom AI agents alongside humans
Auto-route conversations based on context, tone, or rules
Auto-assign labels, detect urgency, update thread summaries
Integrate external systems via workflows (e.g., Linear, PagerDuty)
Automated daily digests of support trends and actions
Real-time thread summaries with context and changes
API-first architecture for custom extensions and embedding
In-app chat widget and headless portal
Help center with knowledge base and Ask AI for self-service
Define SLAs, business hours, and customer tiers
Automatic data enrichment from CRM and other tools
Integrations
Slack
Notion
GitHub
Google Calendar
Calendly
Cal.com
Instagram
Facebook Messenger
WhatsApp
Microsoft Teams
Discord
Email
Linear
PagerDuty
CRM (unspecified)
Issue trackers (e.g., Jira, GitHub)
Web API for custom integrations