Yearly Billing Is the Right Default for Most Writers
For most writers, ProWritingAid Premium on yearly billing at $120 is the best buy. The same plan costs $30 a month on monthly billing, or $399 once for a lifetime license, as of November 2026. Lifetime only beats yearly once you reach a fourth year of use.
The Free plan is a fair test, not a working tool for long drafts. It gives suggestions for 500 words at a time and limits each line editing report to 2 runs a day. Confirm current pricing on the official site before you pay, since plan prices can change.
What the Free Plan Checks and Where 500 Words Stops You
The ProWritingAid pricing page lists grammar, spelling and punctuation checks on the Free plan. It also includes a thesaurus, writing session tracking and support for 40 or more document types.
The catch is the window. Free accounts receive suggestions for 500 words at a time. A cover letter fits inside that window, but a chapter does not.
The AI features are rationed too. Free allows 10 Rephrases, 3 Sparks and 3 Creative Nudges a day. Story Canvas, the planning tool, gets 3 feedback runs in total.
Free, Premium and Premium Pro Side by Side
The table below uses figures from the ProWritingAid pricing page as of November 2026. Yearly prices are shown as the total for the year and the monthly equivalent.
| Feature | Free | Premium | Premium Pro |
|---|---|---|---|
| Monthly billing | $0 | $30 a month | $36 a month |
| Yearly billing | $0 | $120 a year ($10 a month) | $144 a year ($12 a month) |
| Lifetime license | Not offered | $399 one-time | $699 one-time |
| Suggestions per check | 500 words at a time | No stated limit | No stated limit |
| Line editing reports | 2 runs a day on 500 words | Unlimited | Unlimited |
| Rephrases | 10 a day | Unlimited | Unlimited |
| Sparks | 3 a day | 5 a day | 50 a day |
| Creative Nudges | 3 a day | 9 a day | 15 a day |
| Chapter Critiques | Not listed | 1 a day | 30 a day |
| Story Credits discount | None | Up to 40% off | Up to 65% off |
| Plagiarism checks | Additional cost | Additional cost | Additional cost |
Premium also adds a custom style guide, a custom dictionary and 25 or more analysis reports. Premium Pro adds live workshops and a library of more than 200 hours of recorded sessions.
Pricing a 90,000-Word Manuscript on the Free Plan
Long projects show where Free stops being practical. Assume a novelist has a 90,000-word draft, an illustrative length for an adult novel.
| Step | Calculation | Result |
|---|---|---|
| Words per report run on Free | Fixed by the plan | 500 words |
| Runs allowed per report per day | Fixed by the plan | 2 runs |
| Words covered per report per day | 500 x 2 | 1,000 words |
| Days to run one report over the draft | 90,000 / 1,000 | 90 days |
| Premium yearly cost for the same job | One yearly charge | $120 |
Ninety days covers a single report type. Running several reports would multiply the wait, and the draft keeps changing while you edit.
On Premium the same reports are unlimited, with no stated word limit per check. That costs $10 a month on yearly billing. For anything longer than a few thousand words, Free is a trial and Premium is the tool.
A Blogger Publishing Four 1,500-Word Posts a Month
Shorter work hits the same wall, only more slowly. Assume a blogger publishes 4 posts a month at 1,500 words each, or 6,000 words in total.
| Step | Calculation | Result |
|---|---|---|
| Words checked per report per day on Free | 500 x 2 runs | 1,000 words |
| Days to run one report over one post | 1,500 / 1,000, rounded up | 2 days |
| Days to run one report over the month | 6,000 / 1,000 | 6 days |
| Grammar suggestions per post | 1,500 / 500 | 3 separate checks |
| Premium cost per post on yearly billing | $120 / 48 posts a year | $2.50 a post |
Six days a month is manageable if you only use one report. It becomes awkward when you want a style pass and a readability pass on each post before it goes live.
The per-post figure is the useful one here. At 48 posts a year, yearly Premium costs $2.50 a post, rounded only at the last step. If editing time is worth more than that to you, the upgrade pays for itself.
What Premium Adds Beyond Unlimited Words
The word limit gets the attention, but Premium changes how you edit. The pricing page lists a custom style guide, a custom dictionary and author comparison on Premium.
A custom style guide matters for anyone writing to house rules. You can set preferred spellings and banned terms once, rather than fixing them by hand in every draft. A custom dictionary stops the checker flagging character names, product names or technical terms.
Premium also adds commenting and sharing, plus unlimited document storage. That helps a writer who sends drafts to an editor or a writing partner for notes.
For fiction writers, Premium adds Outline Crafter and raises Story Canvas from 3 feedback runs to 30. These are planning tools, so they matter before drafting rather than during editing.
The integrations are listed on the same page. ProWritingAid works through a desktop app, Google Docs, Microsoft Office and a desktop editor. Check that your main writing app is covered before paying for a year.
When the $399 Lifetime License Pays for Itself
The lifetime plan looks expensive next to $120, and the arithmetic explains why. Compare total spending by year, assuming prices stay where they are in November 2026.
| Years of use | Monthly billing | Yearly billing | Lifetime |
|---|---|---|---|
| 1 year | $360 | $120 | $399 |
| 2 years | $720 | $240 | $399 |
| 3 years | $1,080 | $360 | $399 |
| 4 years | $1,440 | $480 | $399 |
| 5 years | $1,800 | $600 | $399 |
Lifetime costs $39 more than 3 years of yearly billing. It only becomes cheaper during the fourth year, and by year 5 it has saved $201.
Monthly billing is rarely the right choice. Four months at $30 cost $120, the same as a full year. Unless you need Premium for 3 months or less, yearly is cheaper.
Premium Pro follows the same pattern at a slower pace. Its $699 lifetime license equals almost 5 years at $144, so it only pays off in the fifth year.
What the Extra $24 a Year Buys in Premium Pro
On yearly billing, Premium Pro costs $144 against $120 for Premium. That $24 gap mostly buys more AI allowance, not better grammar checks.
Sparks rise from 5 to 50 a day, and Chapter Critiques rise from 1 to 30 a day. Creative Nudges rise from 9 to 15. Premium Pro also adds community features, including live workshops, cowriting sprints and group critiques.
If you edit your own words and rarely ask the AI to draft, Premium covers you. If you critique a chapter a day or lean on generated suggestions, Pro removes the ceiling for $2 more a month.
The Story Credits discount is the other difference. Premium gives up to 40% off and Premium Pro up to 65% off, which only matters if you buy those credits.
Refund Windows and Other Fine Print Worth Knowing
The refund window is short. ProWritingAid accepts refund requests for yearly and lifetime plans within 3 days of purchase, and only by email. Cancelling the plan alone does not trigger a refund.
Monthly plans are not refundable at all. You can turn off auto-renew in your profile to stop the next payment, but the current month is spent.
Two more rules affect the budget. Plagiarism checks cost extra on every plan, including Premium Pro. Each license covers one person, who may install it on several computers, so a shared family laptop still needs separate licenses.
The pricing page says students get 25% off yearly plans through a verified Student Beans account. If that applies to the $120 Premium price, the yearly cost falls to $90.
How ProWritingAid Compares With a Real-Time Checker
ProWritingAid is built around reports you run after drafting. Its pricing page lists 25 or more analysis reports on Premium, covering areas such as style and readability. That suits a writer who drafts first and edits in passes.
A real-time checker suits short, fast writing better, such as email and chat. If your work is mostly messages and short documents, read our breakdown of Grammarly Free vs Pro and its 100-prompt limit. Our guide to the best AI grammar checkers compares the wider field.
Some writers do not need either tool. If you write in Word or Google Docs, see whether their built-in grammar checks are enough before you pay.
Which ProWritingAid Plan Fits Your Writing
If you write cover letters, short essays or blog posts under 500 words: Free fits. Paste each piece in whole and use the 10 daily Rephrases for awkward sentences.
If you are working on a first novel, a thesis or a long report: Premium on yearly billing fits. At $120 a year it removes the 500-word window and the 2-run daily report limit.
If you are a student with a verified Student Beans account: Premium yearly with the 25% student discount fits. Check the price at checkout, since the discount applies to yearly plans.
If you have written for years and expect to keep going for 4 or more: Lifetime Premium at $399 fits. It beats yearly billing from the fourth year onward.
If you critique chapters daily or use AI drafting heavily: Premium Pro on yearly billing fits. It costs $24 more a year and raises Chapter Critiques from 1 to 30 a day.
If you only need help for a single short project: Monthly billing fits, but only for up to 3 months. A fourth month costs as much as a full year.
A Sensible Way to Start
Start on Free and run the line editing reports on a sample of your own writing. If the reports change how you revise, buy Premium yearly rather than monthly.
Use the 3-day refund window as your safety net, since it is the only one ProWritingAid offers. Leave the lifetime license until you know the tool fits a long writing habit.
If you also use AI chatbots for drafting, our guide on how to fact-check AI writing covers what a grammar tool cannot catch. Confirm current pricing on the official site before you subscribe.
FAQ
Is ProWritingAid free?
Yes. The Free plan checks grammar, spelling and punctuation, but it only gives suggestions for 500 words at a time. Each line editing report runs up to 2 times a day on 500 words, as of November 2026.
How much is ProWritingAid Premium?
Premium costs $30 a month on monthly billing, $120 a year on yearly billing, or $399 as a one-time lifetime payment, as of November 2026. Confirm current pricing on the official site before you buy.
Is the ProWritingAid lifetime plan worth it?
Only if you expect to use it for at least 4 years. At $120 a year, 3 years of Premium cost $360, still less than the $399 lifetime price. The fourth year is where lifetime pulls ahead, assuming the yearly price stays the same.
Does ProWritingAid Premium include a plagiarism checker?
No. The ProWritingAid pricing page lists plagiarism checks as an additional cost on every plan, including Premium Pro, so budget for them separately.
Can I get a refund from ProWritingAid?
Yearly and lifetime plans can be refunded if you email ProWritingAid within 3 days of purchase. Cancelling alone does not trigger a refund. Monthly plans are not refundable, though you can turn off auto-renew.
Sources
- ProWritingAid Pricing — checked 2026-11-07
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How this article was made: it was drafted with AI assistance from the official sources listed above, and its figures were checked against those pages on the dates shown. It is not based on personal hands-on testing.
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