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Side Copilot vs Nook

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 Nook
DetailSide Copilot logo Side CopilotNook logo Nook
What it doesBrowse less. Get more done. A Chrome extension that helps you stay focused, keep your place, and finish reading articles
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Free trial
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 trial with full access to all features, no credit card required. After trial: $5/month or $39/year.
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
  • Autopace: guided reading that moves at your rhythm
  • Bionic reading mode for faster word recognition
  • Paragraph and line chunking to break down text walls
  • Seven specialized fonts including OpenDyslexic, Lexend, and Atkinson Hyperlegible
  • Calm background colors to reduce eye strain
  • Distraction-free reading mode
  • Works on any website, EPUB, or PDF
  • No ads or interruptions
  • Reading progress syncs across devices
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
  • Built specifically for ADHD brains, not generic readers
  • Research-backed features grounded in peer-reviewed studies
  • Every feature designed to reduce mental effort, not add to it
  • 30-day money-back guarantee
  • Cancel anytime with no questions asked
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 check2 no change since last check
Trust Flow (Majestic)204
Citation Flow (Majestic)3223
Referring domains (Majestic)28714

5 details filled in for both companies.

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