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Reference edition 2026.46

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Slap vs Trailback

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Slap compared with Trailback
DetailSlap logo SlapTrailback logo Trailback
What it doesEmail sync and client portals for Notion Search your computer by describing what you remember
StageNot given Startup
FoundedNot given 2026
Based inNot given IN
Pricing modelPaid Paid
PricingSlapMail: $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. $9 lifetime one-time payment for all features on Mac and Windows
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
  • Search by description across websites, files, screenshots and copied text
  • Remembers browser history, files, screenshots and copied text offline
  • Quick Search overlay accessible from any app
  • Collections to sort files by source, type or project
  • Tidy feature to rename messy files and organize downloads
  • Your Week view showing projects, files and pages from each week
  • Pick a time feature to view and reopen everything from a specific moment
  • Browser extensions for Chrome, Edge, Firefox, Brave, Safari and Comet
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
  • One-time $9 lifetime payment with no subscription or monthly fees
  • Searches by content and meaning, not just filenames
  • Never records screen, sees passwords or reads private browsing
  • Works across all activity—websites, files, screenshots and copied text
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)17 +1 (up) since last check10 +4 (up) since last check
Trust Flow (Majestic)112
Citation Flow (Majestic)2517
Referring domains (Majestic)986

5 details filled in for both companies.

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