Grammarly vs HeyNews

Grammarly is an AI writing assistant that checks grammar, spelling, punctuation, and style in real time across browsers, desktop apps, and mobile keyboards. It integrates directly into Gmail, Google Docs, Microsoft Word, Slack, and thousands of other websites via a browser extension. Beyond basic correctness, Grammarly analyzes tone and clarity, suggesting rewrites to make writing more concise, confident, or friendly depending on the context and audience selected by the user. GrammarlyGO adds generative AI features for drafting emails, replying to messages, and rewriting passages on demand, while Grammarly Business adds brand style guides and analytics for teams that need consistent written communication across an organization.

HeyNews is a voice-trained AI newsletter generator for creators, publishers, and company teams. It learns your writing style from your past newsletters, monitors custom sources across RSS feeds, social media, blogs, and more, and produces publish-ready issue drafts in about five minutes. The platform works with popular newsletter infrastructure such as beehiiv and Kit, and it can import archives from Substack, Ghost, Mailchimp, and other public archives to train the AI on your unique voice. Instead of generic AI output, HeyNews emphasizes consistency: it creates separate AI Writers for different editions, applies up to 50 Style Rules and 20 Reusable Links, and supports multiple languages and timezones. Automations pick issue days and cadences, draft up to six days ahead, and pull in stories published since the last draft. Once beehiiv or Kit is connected, open and click analytics help rank stories and suggest subject lines. HeyNews never schedules or sends issues itself; it hands you a draft to review and publish from your usual platform. The product is designed for newsletter operators who are burning out on research and drafting. It replaces hours of manual curation while leaving editorial decisions in your hands. HeyNews also offers a done-for-you path for companies and creators who want the newsletter built and run for them. The team is based in İzmir, Türkiye, and has published more than 600 issues before launch. Existing operators report cutting daily content work from an hour to five minutes and growing sponsorship revenue without adding production workload.

• Works across almost every app via browser extension
• Good tone and clarity suggestions beyond basic grammar
• GrammarlyGO speeds up drafting
• Free tier is genuinely useful

• Learns your actual writing voice from your newsletter archive rather than using generic AI templates.
• Automates research and relevance scoring across hundreds of sources.
• Dramatically cuts production time, with operators reporting a drop from 1 hour per day to 5 minutes.
• Supports multiple publications, editions, languages, and team roles.

• Premium features behind a subscription
• Occasional over-aggressive suggestions
• Privacy concerns for some sensitive writing contexts

• Direct integrations are limited to beehiiv and Kit; other platforms rely on public archive URL or CSV imports.
• Automated beehiiv draft creation requires a paid beehiiv plan plus a separate OAuth connection.
• No built-in sending or scheduling; you still review and publish via your own email platform.
• Trial is capped at 14 days or 5 generated issues, whichever comes first.