SlapMail: $8/user/month (billed yearly). SlapPortal: plans start at $12/month (billed yearly) for up to 5 active users and scale from there. Both include free trial with no credit card required.
Not given
Key features
Sync Gmail and Outlook emails to Notion automatically
Reply to emails from Notion
Smart email routing based on labels and folders
Automatic contact linking
Attachment storage in Notion
Share inboxes across teams
Property-level access control for portals
Real-time bidirectional sync
No separate interface to build
Works with free Notion accounts
Three-coin casting method for generating six-line charts
Rule-based chart calculation with stem-branch assignment
Optional AI-assisted interpretation of results
AI follow-up questions and conversation feature
Local browser storage for reading history
Hexagram judgments and images reference
Multi-language support including English, Chinese and Spanish
What makes it different
Built specifically for Notion workflows
One source of truth for sales, support, and client work
No data duplication between workspace and portal
Google CASA Tier 2 certified and Microsoft-verified
Content never permanently stored outside Notion
Transparent rule-based chart calculation that AI cannot alter
All charting happens locally in your browser for privacy
Slap
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