OpenCapture vs TypoGuard

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

OpenCapture compared with TypoGuard
Detail	OpenCapture	TypoGuard
What it does	Free full-page screenshot browser extension for Chrome, Edge and Firefox	AI-powered Chrome extension that fixes typos and grammar mistakes before you send
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: Full-page, visible-area and selected-area capture, crop, draw, text, shapes, blur, unlimited undo, and export to PNG or PDF. Supporter: $5 for 1,000 credits (one-time, includes tiled logo or text watermark with custom opacity, position, and angle).	Free plan: 100 corrections per month at $0. Pro plan: unlimited corrections at $6.99 per month. Ultimate plan: unlimited corrections at $49.99 per year.
Key features	Full-page screenshot capture Visible-area and selected-area capture modes Crop and resize images Draw, text and shapes annotation Blur sensitive information Unlimited undo Export to PNG or PDF Capture history with last 50 screenshots Tiled watermark (Supporter feature)	Works in chat boxes, emails, and text fields on supported platforms Browser-based correction without leaving your conversation Powered by Gemini AI for intelligent suggestions Supports multiple languages including French, Spanish, German, and Greek Faster correction response on premium plans Priority support with ticket system on premium plans Unlimited corrections on premium plans Continuously growing platform support Inspired by Google's "Did You Mean" suggestion feature
What makes it different	Completely open source under AGPL-3.0-or-later so users can verify no data collection All processing done locally with no uploads unless buying credits No account required for all core features One-time payment for Supporter feature instead of subscription Stitches full pages into seamless single images	Works directly in the platforms where you actually type, like Gmail, ChatGPT, and Messenger No account required for the free tier with 100 corrections per month All Gemini AI API costs are included in your subscription with no hidden fees Premium users get up to 5,000 corrections per month, more than 160 per day Simple setup after Chrome installation with no complex configuration needed
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)	Not checked yet no change since last check	8 no change since last check
Trust Flow (Majestic)	21	4
Citation Flow (Majestic)	21	13
Referring domains (Majestic)	25	27

5 details filled in for both companies.

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