Instant Grammar

Plans and prices

Every plan, in full

On the record

Analytics and crash reports

The privacy policy says the app collects anonymous usage analytics and crash reports only if users opt in.instant-grammar.com · read 11 Oct 2026

App compatibility

The site says it works across Windows applications, including Word, browsers, and email clients.instant-grammar.com · read 11 Oct 2026

Company

The site copyright notice names Accelio Limited.instant-grammar.com · read 11 Oct 2026

Corrections

It offers grammar, spelling, and style suggestions, with corrections applied automatically after text is selected.instant-grammar.com · read 11 Oct 2026

Desktop app

Yesinstant-grammar.com · read 21 Sep 2026

Integrations

The app uses OpenAI's API, and its privacy policy says communication with OpenAI happens directly from the user's device to OpenAI.instant-grammar.com · read 11 Oct 2026

Local key storage

The privacy policy says the OpenAI API key is stored locally and never sent to the maker's servers.instant-grammar.com · read 11 Oct 2026

Open source

The maker describes the application as 100% open source and links to its GitHub repository.instant-grammar.com · read 11 Oct 2026

Style suggestions

Yesinstant-grammar.com · read 21 Sep 2026

Support

The maker lists support by email at [email protected].instant-grammar.com · read 11 Oct 2026

Supported version

The download page lists version 1.0.1 for Windows 10/11 and requires Windows 10 or later with 35 MB of free space.instant-grammar.com · read 11 Oct 2026

Terms

The terms say users are responsible for providing their OpenAI API key and paying associated OpenAI usage costs.instant-grammar.com · read 11 Oct 2026

Text handling

The privacy policy says personal text is not stored or transmitted to the maker's servers, while the app sends text to OpenAI for grammar checking.instant-grammar.com · read 11 Oct 2026

Usage costs

No subscription is required; users provide an OpenAI API key and pay OpenAI for usage.instant-grammar.com · read 11 Oct 2026

What it does

Instant Grammar is an open source AI-powered grammar checker for Windows applications that uses an OpenAI API key.instant-grammar.com · read 11 Oct 2026

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