Skip to main content

StackTools vs Nook

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

StackTools compared with Nook
DetailStackTools logo StackToolsNook logo Nook
What it doesPrivate browser tools for everyday work 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 modelFree Free trial
PricingNot given Free trial with full access to all features, no credit card required. After trial: $5/month or $39/year.
Key features
  • PDF merge, split and compress
  • Convert Word, Excel, images to PDF
  • OCR, redact and protect PDFs
  • Compress images (JPG, PNG, WebP, AVIF)
  • Convert HEIC images
  • Background removal
  • On-device image upscale
  • Works offline after first load
  • No signup required
  • 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
  • Files process in your browser with no uploads to servers
  • No account, no credit card, no friction
  • Works offline after first visit
  • 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)8 no change since last check2 no change since last check
Trust Flow (Majestic)44
Citation Flow (Majestic)1423
Referring domains (Majestic)414

4 details filled in for both companies.

More alternatives to StackTools More alternatives to Nook

Help centre