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Updated 4 September 2026 · Independent comparison

Grammarly vs ProWritingAid:
which should you use?

Grammarly and ProWritingAid, side by side. Find the one that fits what you need to do.

Find your best fit

The 30-second answer

Grammarly is built for writing, communication & language. ProWritingAid is built for writing, communication & language.

Pricing, simplified

Start free. Upgrade when you need more.

2 of 2 have a free plan 0 of 2 prices re-read automatically · how we know No paid placement

The 30-second comparison

If you only read one section, make it this one. Rows where both sides say the same thing are left out — the point is where they differ. Where each row came from is listed underneath.

Grammarly and ProWritingAid side by side, with the better fit for each row.
CategoryGrammarlyProWritingAidBetter fit
What it's built forWorks inside the apps you already write in rather than a separate window, which is why it actually gets used. Grammar, tone and clarity in place.Built for manuscripts rather than emails: pacing, repetition, dialogue tags and the reports a novelist actually wants. Sells a lifetime licence.Tie
Free planYes. Free tier: writing without spelling and grammar mistakes, tone detection, and 100 AI prompts for generating textYes. Free tier with a word limit, plus Story Canvas and 2 runs of the line editing report a dayTie
What the paid tiers cost
  • One person, from $30/month
  • Enterprise, priced on request
  • One person, from $30/month
Tie
What to watch out forBetter at fixing than composing. It smooths writing toward a neutral register, which is not always what you want. The free tier caps generation at 100 AI prompts, and the enterprise tier now arrives through Superhuman Go rather than as Grammarly itself.The volume of suggestions is overwhelming until you turn most of them off. There are three ways to pay — monthly, yearly, or a one-off lifetime licence — and the yearly rates the page shows are sale prices rather than the standing ones. Monthly costs three times the standing yearly rate.Tie
Who it is usually forstudents, working professionalsworking professionals, studentsTie
What it asks of youNo setup — it works in a browser.Expects some technical comfort to get going.Tie
Made byGrammarly — San Francisco, US.ProWritingAid — London, GB.Tie

Neither leads on the 7 rows above: 0 each. The job decides it, not the table.

Too close to call

Grammarly or ProWritingAid

Neither leads on the rows above — the job decides it.

✓ Works inside the apps you already write in rather than a separate window, which is why it actually gets used. ✓ You would rather not configure anything first ✓ It is built for writing, communication & language ✓ Grammar, tone and clarity in place.
Choose ProWritingAid instead if…

Built for manuscripts rather than emails: pacing, repetition, dialogue tags and the reports a novelist actually wants.

ProWritingAid is the better answer when the job is what it was built for rather than what the pick above does broadly.

✓ Works inside the apps you already write in rather than a separate window, which is why it actually gets used. ✓ You would rather not configure anything first ✓ It is built for writing, communication & language ✓ Grammar, tone and clarity in place.

How we know

Every row that separated these two, and where it came from. Nothing here is a hands-on test — if a line rests on a vendor’s own pricing page, it says so and links it.

Nothing on the table above separates them: every row either matches or is a tie. That is the finding, and it is why this page names no winner.

The prices

Grammarly. Read by hand off grammarly.com on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. grammarly.com/plans

ProWritingAid. Read by hand off prowritingaid.com on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. prowritingaid.com/pricing

The ratings

The category these two share. Writing, Communication & Language — both are listed there in the catalogue, and the fit recorded against each listing is a judgement made here, by hand.

The nine-category grid below. Derived from what each product is listed for, by one script, once per build — so the same pair always reads the same. It is a derivation, not a review.

What this is not

Neither product was run side by side to produce this page. Nobody was paid to appear on it and nothing here is ranked by commission.

To put the same question to both and read the answers yourself, run them side by side — that is a live test, and this is not.

Choose based on what you’re doing

All ten categories, including the ones where neither of these is the answer. These ratings are derived from what each product is listed for, not from running it — a rating here is a reading of the record, and the record is linked.

01

General-Purpose AI Assistants

Questions, brainstorming, explanations, everyday tasks, decision-making, general advice.

Grammarly
Not a good fit
ProWritingAid
Not a good fit
Best choice: Neither
02

Search, Research & Academics

Web research, deep research, books, academic papers, citations, news, fact-checking.

Grammarly
Not a good fit
ProWritingAid
Not a good fit
Best choice: Neither
03

Writing, Communication & Language

Emails, reports, essays, editing, summarizing, translation, presentations.

Grammarly
Built for this
ProWritingAid
Built for this
Best choice: Tie
04

Coding, Data & Technical Work

Programming, debugging, data analysis, spreadsheets, math, engineering, technical research.

Grammarly
Bad fit
ProWritingAid
Bad fit
Best choice: Neither
05

Business, Finance & Professional Work

Business strategy, investing, market research, legal, sales, HR, accounting, consulting.

Grammarly
Not a good fit
ProWritingAid
Not a good fit
Best choice: Neither
06

Image & Design

Image generation, photo editing, logos, graphics, product design, advertising creatives.

Grammarly
Bad fit
ProWritingAid
Bad fit
Best choice: Neither
07

Video

Video generation and editing, clipping, subtitles, avatars, animation and motion capture.

Grammarly
Bad fit
ProWritingAid
Bad fit
Best choice: Neither
08

Audio, Voice & Music

Voice generation, transcription, music, dubbing, sound cleanup and podcast production.

Grammarly
Bad fit
ProWritingAid
Bad fit
Best choice: Neither
09

Marketing & Content Creation

Social media, SEO, advertising, copywriting, content ideas, scripts, brand development.

Grammarly
Not a good fit
ProWritingAid
Not a good fit
Best choice: Neither
10

Productivity, Automation & Personal Life

AI agents, workflows, scheduling, meetings, organization, shopping, travel, personal finance.

Grammarly
Not a good fit
ProWritingAid
Not a good fit
Best choice: Neither
Pick Grammarly if

Works inside the apps you already write in rather than a separate window, which is why it actually gets used.

San Francisco, US
Works inside the apps you already write in rather than a separate window, which is why it actually gets used.
You would rather not configure anything first
It is built for writing, communication & language
Grammar, tone and clarity in place.
Pick ProWritingAid if

Built for manuscripts rather than emails: pacing, repetition, dialogue tags and the reports a novelist actually wants.

London, GB
Built for manuscripts rather than emails: pacing, repetition, dialogue tags and the reports a novelist actually wants.
It is built for writing, communication & language
Sells a lifetime licence.
Free tier with a word limit, plus Story Canvas and 2 runs of the line editing report a day

Pricing, simplified

The plans people actually compare, read from each vendor’s own page.

PricingSimple, up-to-date plan overview.
Grammarlyby Grammarly
ProWritingAidby ProWritingAid
Free version
Grammarly
Yes — Free plan availableWriting without spelling and grammar mistakes, tone detection, and 100 AI prompts for
ProWritingAid
Yes — Free plan availableFree tier with a word limit, plus Story Canvas and 2 runs of the line editing report a day
Individual plans
Grammarly
Pro $30 / month$12 / month (annual)
ProWritingAid
Premium $30 / month$10 / month (annual)
Premium Pro $36 / month$12 / month (annual)
Business plans
GrammarlyNot sold to teams
ProWritingAidNot sold to teams
Enterprise
Grammarly
Custom pricing
ProWritingAidNot published
View full details
GrammarlyView Grammarly pricing
ProWritingAidView ProWritingAid pricing
Interactive

Tell us what you use AI for

Pick your main job and the verdict below changes to match. Every answer is on the page already, so this works as a reader, not a lookup.

The verdict for that job
Evenly matched
Close call. Both cover writing, communication & language at the same level; both have a free plan you can start on.
7 rows compared

Frequently asked questions

Is Grammarly or ProWritingAid better?

Neither leads on the 7 rows above: 0 each. The job decides it, not the table. both have a free plan you can start on. Grammarly: Works inside the apps you already write in rather than a separate window, which is why it actually gets used. Grammar, tone and clarity in place. ProWritingAid: Built for manuscripts rather than emails: pacing, repetition, dialogue tags and the reports a novelist actually wants. Sells a lifetime licence.

Is Grammarly or ProWritingAid cheaper?

They start at the same price, $30 a month.

Do Grammarly and ProWritingAid both have free plans?

Yes. Grammarly: Free tier: writing without spelling and grammar mistakes, tone detection, and 100 AI prompts for generating text. ProWritingAid: Free tier with a word limit, plus Story Canvas and 2 runs of the line editing report a day.

What should I watch out for?

Grammarly: Better at fixing than composing. It smooths writing toward a neutral register, which is not always what you want. The free tier caps generation at 100 AI prompts, and the enterprise tier now arrives through Superhuman Go rather than as Grammarly itself. ProWritingAid: The volume of suggestions is overwhelming until you turn most of them off. There are three ways to pay — monthly, yearly, or a one-off lifetime licence — and the yearly rates the page shows are sale prices rather than the standing ones. Monthly costs three times the standing yearly rate.

Read more

Grammarly

What it is for, who makes it, what it costs and what to use instead.

ProWritingAid

What it is for, who makes it, what it costs and what to use instead.

Best AI for Writing

Emails, reports, essays, editing, summarizing, translation, presentations.

How we compare AI tools
Every row is generated from the same record the rest of the site is built on, so this page cannot drift from what we say elsewhere. We separate winner, tie and depends rather than forcing each category into a ranking, and we drop rows where both sides say the same thing. A pick is only called an overall pick when it leads on rows about how well the tool does the job; a lead that rests on price or audience alone is labelled as one. Nothing here is a hands-on test — how we know lists the source and date behind every deciding row.