GrammarlyFree plan
Paid from
$30 a month
View plans and limitsUpdated 4 September 2026 · Independent comparison
Grammarly vs Lex:
which should you use?
Grammarly and Lex, side by side. Find the one that fits what you need to do.
Find your best fitThe 30-second answer
Grammarly is built for writing, communication & language.
Lex is built for writing, communication & language.
Pricing, simplified
Start free. Upgrade when you need more.
LexFree plan
Paid from
$24.99 a month
View plans and limitsThe 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.
| Category | Grammarly | Lex | Better fit |
|---|---|---|---|
| What it's built for | 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. | A word processor that happens to have AI in it, so the writing surface comes first and the suggestions stay out of the way until asked. | Tie |
| Free plan | Yes. Free tier: writing without spelling and grammar mistakes, tone detection, and 100 AI prompts for generating text | Yes. Free tier available | Tie |
| Cheapest way to pay | $30 a month. | $24.99 a month. | Lex |
| What the paid tiers cost |
|
| Tie |
| What to watch out for | 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. | Fewer features than a dedicated editing tool, by choice. There is one paid tier, and the $30 of AI credits it includes each month is worth more than the subscription at either billing term, so what you are buying is model access more than software. | Tie |
| Who it is usually for | students, working professionals | working professionals, students | Tie |
| What it asks of you | No setup — it works in a browser. | Expects some technical comfort to get going. | Tie |
| Made by | Grammarly — San Francisco, US. | Lex — Syracuse, US. | Tie |
Lex is ahead on 1 of the 8 rows compared — cheapest way to pay — and it is not about how well it does the job. On fitness for the work, it and Grammarly are level. Treat this as a tiebreaker, not a recommendation.
Lex
A word processor that happens to have AI in it, so the writing surface comes first and the suggestions stay out of the way until asked.
✓ A word processor that happens to have AI in it, so the writing surface comes first and the suggestions stay out of the way until asked.
✓ You want the cheaper paid plan, $24.99 against $30
✓ It is built for writing, communication & language
✓ Free tier available
Works inside the apps you already write in rather than a separate window, which is why it actually gets used.
Grammarly 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.
| Row | Favours | Weight | Where it came from |
|---|---|---|---|
| Cheapest way to pay | Lex | Everything else | From each vendor’s own pricing page. Dates and pages are listed below. |
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
Lex. Read by hand on 4 September 2026, because Lex cannot be read automatically: lex.page/pricing returns 200 with the plans drawn in JavaScript. Priced by hand from the single Lex Pro card on both billing terms; the free tier is not shown on that page. lex.page/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 fitLex
Not a good fitBest choice: Neither
02
Search, Research & Academics
Web research, deep research, books, academic papers, citations, news, fact-checking.
Grammarly
Not a good fitLex
Not a good fitBest choice: Neither
03
Writing, Communication & Language
Emails, reports, essays, editing, summarizing, translation, presentations.
Grammarly
Built for thisLex
Built for thisBest choice: Tie
04
Coding, Data & Technical Work
Programming, debugging, data analysis, spreadsheets, math, engineering, technical research.
Grammarly
Bad fitLex
Bad fitBest choice: Neither
05
Business, Finance & Professional Work
Business strategy, investing, market research, legal, sales, HR, accounting, consulting.
Grammarly
Not a good fitLex
Not a good fitBest choice: Neither
06
Image & Design
Image generation, photo editing, logos, graphics, product design, advertising creatives.
Grammarly
Bad fitLex
Bad fitBest choice: Neither
07
Video
Video generation and editing, clipping, subtitles, avatars, animation and motion capture.
Grammarly
Bad fitLex
Bad fitBest choice: Neither
08
Audio, Voice & Music
Voice generation, transcription, music, dubbing, sound cleanup and podcast production.
Grammarly
Bad fitLex
Bad fitBest choice: Neither
09
Marketing & Content Creation
Social media, SEO, advertising, copywriting, content ideas, scripts, brand development.
Grammarly
Not a good fitLex
Not a good fitBest choice: Neither
10
Productivity, Automation & Personal Life
AI agents, workflows, scheduling, meetings, organization, shopping, travel, personal finance.
Grammarly
Not a good fitLex
Not a good fitBest choice: Neither
Works inside the apps you already write in rather than a separate window, which is why it actually gets used.
San Francisco, USWorks 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.
A word processor that happens to have AI in it, so the writing surface comes first and the suggestions stay out of the way until asked.
Syracuse, USA word processor that happens to have AI in it, so the writing surface comes first and the suggestions stay out of the way until asked.
You want the cheaper paid plan, $24.99 against $30
It is built for writing, communication & language
Free tier available
Pricing, simplified
The plans people actually compare, read from each vendor’s own page.
PricingSimple, up-to-date plan overview.
Free version
Grammarly
Yes — Free plan availableWriting without spelling and grammar mistakes, tone detection, and 100 AI prompts for
Lex
Yes — Free plan availableFree tier available
Individual plans
Grammarly
Pro
$30 / month$12 / month (annual)
Lex
Lex Pro
$24.99 / month$14.99 / month (annual)
Business plans
GrammarlyNot sold to teams
LexNot sold to teams
Enterprise
Grammarly
Custom pricing
LexNot published
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; Lex is cheaper to start paying for, $24.99 against $30.
8 rows compared
Frequently asked questions
Is Grammarly or Lex better?
Lex is ahead on 1 of the 8 rows compared — cheapest way to pay — and it is not about how well it does the job. On fitness for the work, it and Grammarly are level. Treat this as a tiebreaker, not a recommendation. both have a free plan you can start on; Lex is cheaper to start paying for, $24.99 against $30. 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. Lex: A word processor that happens to have AI in it, so the writing surface comes first and the suggestions stay out of the way until asked.
Is Grammarly or Lex cheaper?
Lex — paid plans start at $24.99 a month against $30 a month.
Do Grammarly and Lex both have free plans?
Yes. Grammarly: Free tier: writing without spelling and grammar mistakes, tone detection, and 100 AI prompts for generating text. Lex: Free tier available.
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. Lex: Fewer features than a dedicated editing tool, by choice. There is one paid tier, and the $30 of AI credits it includes each month is worth more than the subscription at either billing term, so what you are buying is model access more than software.
Read more
Grammarly
What it is for, who makes it, what it costs and what to use instead.
Lex
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.