Credibility Analyzer vs Nook

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

Credibility Analyzer compared with Nook
Detail	Credibility Analyzer	Nook
What it does	AI fact-check with a 1–10 score, claim-by-claim findings, and sources across browsers and apps	A Chrome extension that helps you stay focused, keep your place, and finish reading articles
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Free trial
Pricing	Free to use; users bring their own API keys and are billed directly by Google, Anthropic, or OpenAI for model usage.	Free trial with full access to all features, no credit card required. After trial: $5/month or $39/year.
Key features	Chrome and Firefox browser extensions iPhone and Mac apps with Share Extension for analyzing text from Safari or any app Android app on Google Play 1–10 credibility score with short verdict Claim-by-claim findings with verified, partially verified, unverified, or false/misleading labels Source links from web grounding citations Optional Media Bias/Fact Check publisher rating Results in the same language as the page when possible On-device Gemini Nano for local analysis on Chrome Bring your own API key for Gemini, Claude, or OpenAI models	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	Works across multiple platforms as both browser extensions and native mobile apps Bring-your-own-key model with no account required On-device analysis option with Gemini Nano on Chrome keeps text private Claims grounded in live web search or model training knowledge with source citations Multilingual results matching the page language	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 plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	28 no change since last check	2 no change since last check
Trust Flow (Majestic)	2	4
Citation Flow (Majestic)	22	23
Referring domains (Majestic)	30	14

5 details filled in for both companies.

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