2026 Interactive Cost & ROI Calculator
| Plan | Effective / Mo | 1-Year Total | 3-Year Total | Plagiarism & AI Limit | Action |
|---|---|---|---|---|---|
Grammarly Free Free Forever | $0/mo | $0/yr | $0 | 100 prompts/mo Plagiarism: No | Try Grammarly Free |
Grammarly Pro Best for Teams, Business & Academic | $12/mo | $144/yr | $432 | 2,000 prompts/mo Plagiarism: Yes (Pro-Archive & web scan) | Try Grammarly Pro (Save 60% Annual) |
ProWritingAid Premium Best for Fiction & Long Manuscripts | $10/mo | $120/yr | $360or $399 once (Lifetime) | 25+ in-depth manuscript & pacing reports Plagiarism: Paid add-on credits | Try ProWritingAid |
LanguageTool Premium Best for Multilingual & Budget | $5/mo | $60/yr | $180 | Unlimited style & paraphrasing in 30+ languages Plagiarism: No | Compare LanguageTool |
Cost takeaway: Paying monthly for Grammarly Pro costs $360/year ($30/mo), whereas switching to annual billing drops the price to $144/year ($12/mo), saving you $216 per year. If you plan to keep an editor for 3+ years, compare Grammarly Pro ($432 over 3 years) against ProWritingAid Annual ($360 over 3 years).
Get 20% off Grammarly Pro → Our negotiated reader discount. Real-time grammar, clarity and tone checks wherever you write.
Last verified: November 6, 2026. For a full walkthrough of the tool, see our Grammarly review.
We negotiated a 20% discount on Grammarly Pro for Become a Writer Today readers. Follow our Grammarly link, choose Grammarly Pro, and the discount applies at checkout. There is no code to copy.
Pair it with annual billing for the lowest everyday price. Annual billing already costs $12/month instead of $30/month. Take 20% off the $144 annual price and you pay $115.20 for the year, or $9.60 a month. Use the interactive calculator above to compare your exact 1-year and 3-year cost across every tier.
Grammarly does not run public promo codes. You will not find a working coupon to paste at checkout, and any coupon site advertising one is guessing. What actually lowers the price is our reader discount, the billing cycle you choose, a campus license, and seasonal sales.
| Deal | What it saves | How to get it |
|---|---|---|
| Become a Writer Today reader discount | 20% off Grammarly Pro | Use our Grammarly link |
| Annual billing vs monthly | 60% off ($12/mo vs $30/mo, save $216/yr) | Choose annual billing at checkout |
| Campus license (students & educators) | Grammarly Pro free | Sign up with your school email |
| Free forever tier | $0/mo (100 AI prompts + core grammar) | Start on Grammarly Free |
| Black Friday / Cyber Monday | 40% to 50% off annual upgrades | Create a free account first; upgrade in late November |
If you are a college student, graduate researcher, or faculty member, never pay the full $30 monthly rate.
.edu or institutional email address. If your school holds a site license, your account unlocks Grammarly Pro at no cost.Grammarly’s deepest public promotion runs during the last week of November for Black Friday and Cyber Monday, plus an occasional Back-to-School promotion in late August and September.
Grammarly emails its best 40% to 50% upgrade offers to existing Free-tier users. If you want to wait for the sale, create a free Grammarly account now, install the browser extension, and watch for the in-app upgrade banner or email promotion. If you need Pro today, our 20% reader discount is the best year-round price.
Grammarly’s lineup is now Free, Pro, and Enterprise. In late 2024 the company renamed its paid Premium plan to Grammarly Pro and retired the old standalone Business tier; Pro now covers both individuals and teams, with the custom-priced Enterprise plan for larger organisations. If you are weighing the upgrade, our Grammarly Free vs Pro comparison breaks down every feature and prompt limit.
Affiliate disclosure: the Grammarly links above are affiliate links. We may earn a commission at no extra cost to you. It does not change the price you pay.
Yes. We negotiated 20% off Grammarly Pro for Become a Writer Today readers. Follow our Grammarly link and the discount applies at checkout, with no code to copy.
Not a public one. Grammarly does not use paste-in promo codes. The ways to pay less are our 20% reader discount, choosing annual billing (60% cheaper than monthly), a campus license, or a seasonal sale.
Many universities provide Grammarly Pro free through a campus-wide Grammarly for Education license, so check with your library or IT portal first. If your school has no license, our 20% reader discount works for students too.
Grammarly Pro costs $30 per month when billed monthly ($360/year), $20 per month when billed quarterly ($240/year), and $12 per month when billed annually ($144/year). Annual billing saves $216 over twelve months, before our 20% reader discount.
Yes. Every late November, Grammarly runs a Black Friday and Cyber Monday promotion offering 40% to 50% off upgrades from Free to Grammarly Pro.
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Filler-Word Killer Editor Pack, $19
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