Grammarly
Grammarly is an AI-powered writing assistant that checks grammar, spelling, tone, and clarity across browsers, desktop apps, and Microsoft Office.
grammarly.com ↗ Visit ProgramOverview
Grammarly started as a straightforward grammar checker and has grown into a full writing assistant that lives inside browsers, email clients, and word processors, catching everything from typos to tone mismatches as people type. It now leans heavily on generative AI features for rewriting and drafting text, which has pulled it into the same conversation as newer AI writing tools even though it predates most of them. The free tier is genuinely useful on its own, which is part of why it converts so well into paid upgrades.
Who It’s For
This one fits almost any content site touching productivity, students, freelance writing, or English-language learning, since the product is useful to nearly anyone who writes in a browser. Affiliates covering “best tools for bloggers” or “software for remote work” roundups tend to see steady clicks because the brand is already recognized. The tradeoff is that recognition cuts both ways: conversion rates can be solid, but so much traffic already knows Grammarly exists, so the value affiliates add is often in explaining the paid tiers rather than introducing the product itself.