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StackTools vs Credibility Analyzer

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 Credibility Analyzer
DetailStackTools logo StackToolsCredibility Analyzer logo Credibility Analyzer
What it doesPrivate browser tools for everyday work AI fact-check with a 1–10 score, claim-by-claim findings, and sources across browsers and apps
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Free
PricingNot given Free to use; users bring their own API keys and are billed directly by Google, Anthropic, or OpenAI for model usage.
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
  • 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
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
  • 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
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 check28 no change since last check
Trust Flow (Majestic)42
Citation Flow (Majestic)1422
Referring domains (Majestic)430

4 details filled in for both companies.

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