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HighlightGPT vs Nook

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

HighlightGPT compared with Nook
DetailHighlightGPT logo HighlightGPTNook logo Nook
What it doesA browser extension that lets you ask, explain, translate, and memorize from highlights using ChatGPT's native responses 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 modelNot given Free trial
PricingFree: $0/Lifetime includes highlight toolbar inside ChatGPT, ask/explain/translate, view answers in side panel, manually save to ChatGPT memory. Pro: $8/Lifetime adds remove ads, unlimited saving to ChatGPT memory, priority support, early access to new features. Free trial with full access to all features, no credit card required. After trial: $5/month or $39/year.
Key features
  • Highlight toolbar inside ChatGPT
  • Ask questions directly from highlighted text without retyping
  • Translate ChatGPT replies while preserving tone and nuance
  • Save important answers to ChatGPT memory
  • Context-aware replies in side panel
  • Zero extra tokens usage
  • 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
  • Zero extra tokens - no additional token usage while using ChatGPT's native responses
  • Side panel design keeps you reading ChatGPT uninterrupted
  • Privacy-first with answers generated only by ChatGPT
  • 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)32 −1 (down) since last check2 no change since last check
Trust Flow (Majestic)84
Citation Flow (Majestic)1923
Referring domains (Majestic)3214

4 details filled in for both companies.

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