✦ HyperWords vs Grammarly
Why writers switch from Grammarly to HyperWords.
Grammarly does grammar. HyperWords does grammar plus rewriting, plus summaries, plus custom AI skills — for roughly a third of the price.
HyperWords Pro $3.99/mo · Grammarly $12–30/mo · 3× cheaper
Why writers switch
01
Roughly a third of the price
HyperWords Pro is $3.99/mo flat. Grammarly Premium is $12/mo (annual) up to $30/mo (monthly). Same grammar coverage plus far more.
02
Editable prompts, not fixed suggestions
Open any of the 13 AI actions — Rewrite, Formal, Casual, Continue writing — and rewrite its prompt. Grammarly's suggestions are what Grammarly decides they should be.
03
PDF summaries with chat — Grammarly doesn't have this
Drop a PDF, get a TL;DR plus bullets with page citations. Summaries save as documents you can chat with later. Grammarly doesn't ship this at all.
04
Custom AI skills you build once, reuse forever
Save any prompt — 'Rewrite for LinkedIn', 'Translate to Vietnamese' — and reuse it across every doc and every website.
Feature comparison
| Feature | HyperWords | Grammarly |
|---|---|---|
| Grammar & spelling checks | Yes | Yes |
| AI rewriting / paraphrasing | 13 editable modes | Limited (Premium) |
| Editable prompts | Yes | No |
| Custom AI skills | Yes | No |
| PDF / URL summarizer | Yes, with chat | No |
| Voice & Style personalization | Yes | Limited |
| Chrome extension | Yes | Yes |
| Free plan | Generous — 25 rewrites/day, 10 summaries/mo | Limited |
| Paid plan price | $3.99/mo | $12–30/mo |
Read the full comparison
Read the full comparison: 10 Best Grammarly Alternatives in 2026 →✦ Frequently Asked
Questions people ask
Yes. HyperWords Pro is $3.99/mo. Grammarly Premium runs $12/mo (annual) up to $30/mo (monthly), and Grammarly Business is higher. Even on the cheapest Grammarly plan, HyperWords Pro is roughly a third of the price.
HyperWords includes unlimited spell and grammar checks on every plan, including Free. It catches the same kinds of issues — typos, comma splices, subject-verb disagreement, awkward phrasing. The main difference: HyperWords stays in your voice (it respects your Voice & Style profile) rather than nudging everything toward a generic style.
Yes — the HyperWords Chrome extension works in any text field on the web. Gmail, Notion, Google Docs, LinkedIn, Slack, X, anywhere you type. Same extension exposes all 13 AI actions plus your custom skills.
Four things: (1) Editable built-in prompts — you can rewrite what "Formal" or "Casual" means to you. (2) Custom AI skills — save any prompt and reuse it everywhere. (3) PDF/URL summaries with page citations and chat-with-source. (4) Voice & Style personalization that makes every output sound like you wrote it.
Yes. HyperWords Free includes Voice & Style, all 13 AI actions, 1 custom skill, unlimited spell & grammar, 25 chats/day, 25 rewrites/day, and 10 summaries/month. No credit card required. Upgrade to Pro ($3.99/mo) only if you need higher limits or more custom skills.
Just install the HyperWords Chrome extension — you can keep both running side-by-side while you compare. Most users disable or uninstall Grammarly after a week. Your writing stays where it is (Gmail, Docs, etc.); only the extension changes.
Try it free — no credit card.
Open the studio or install the Chrome extension. Your voice, every surface.