Observed arrival · 2026-09-15

Owlproof Keeps the Grammar Checker Small

owlproof.app Observed source

Editorial interest 84/100 Selection signal · not a rating of the site

A Windows app and Chrome extension that checks spelling and grammar as you type, without turning into a broader AI productivity suite.

Landing page captured for the 2026-09-15 issue.

Field notes

The product is distributed in three Windows forms—a signed direct installer, Microsoft Store package, and Chrome extension—and the page specifies Windows 10 and 11 on 64-bit systems. Its correction model is deliberately visible: each flagged error comes with a plain-English reason, while a suggested rewrite remains optional and requires approval. The free tier has no card requirement or trial clock; the stated Pro tier removes the daily cap and adds rewrites for $20 per month.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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Pepperoni in a Rearranged Kitchen

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