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Side Copilot vs Histiq

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

Side Copilot compared with Histiq
DetailSide Copilot logo Side Copilot Histiq
What it doesBrowse less. Get more done. AI semantic search for your browser history and PDFs
StageNot given Startup
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Freemium
PricingFree: $0/month with up to 5 spaces and basic chat. Pro: $2.9/month ($4.9 monthly equivalent) with unlimited spaces and Agent Mode. Pro+: $7.9/month ($11.9 monthly equivalent) with cross-page agent and additional tools. Yearly plans include 2 months free. Free 14-day trial (no credit card required, starts on install). Then: Monthly $6.99/mo, Annual $4.17/mo (billed $49.99/year, save 40%), or Lifetime $129 one-time payment.
Key features
  • Vertical tabs manager in side panel
  • Group tabs by domain or AI
  • Chat mode to query open tabs
  • Agent mode for browser automation
  • Suspend tabs to free memory
  • Pin and search tabs
  • Support for multiple languages
  • Save and restore tab groups
  • Semantic search by meaning instead of exact keywords
  • Automatic PDF indexing and search
  • Sub-50ms search latency
  • Works on Chrome and Edge from single install
  • Privacy controls including domain blocklist and URL patterns
  • Encrypted local backup and export
  • No account or login required
  • Support for PDFs up to 50 MB
What makes it different
  • AI-powered tab organization without switching browsers
  • Side panel operates without breaking workflow
  • Works across multiple browsers and platforms
  • Generous free plan with cloud sync
  • Natural language AI grouping
  • Only browser history tool that is 100% local with zero data transmission to servers
  • Includes full 14-day free trial with no credit card required
  • Works across Chrome and Edge without requiring separate installs
  • Lifetime purchase option with no recurring billing
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)52 no change since last check1 no change since last check
Trust Flow (Majestic)202
Citation Flow (Majestic)3215
Referring domains (Majestic)28730

5 details filled in for both companies.

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