Skip Grammarly If Typos Are Your Only Problem
For most people who only need typos and grammar slips caught, Word and Google Docs are already enough. Grammarly adds nothing those writers will notice. Microsoft 365 Personal lists at $9.99 a month or $99.99 a year and includes Microsoft Editor, as of October 2026. Google Docs underlines spelling and grammar at no cost in six languages. Grammarly earns a seat only if you lean on tone feedback, one-click rewrites, or a plagiarism check, and the plans page lists Pro at $12 with 2,000 AI prompts per member a month.
That is the decision in four sentences. The rest of this guide shows exactly where the built-in checkers stop, what Grammarly does differently, and what each combination costs over a year.
What Word and Docs Already Catch Without Paying Extra
- ● Word ships Microsoft Editor inside Microsoft 365
- ● Docs flags spelling in red and grammar in blue
- ● Docs covers six languages at no cost
Both editors have grown real checkers over the last few years. Microsoft’s comparison page lists Microsoft Editor as included in both the Personal and Family plans, alongside the Copilot features. If you already pay for Word, the grammar layer is part of the price.
Google is just as direct. Its Docs help page says misspelled words are underlined in red and grammar suggestions in blue, and that suggestions are available in English, Spanish, French, German, Portuguese, and Italian. You can accept everything at once from the More menu or add words to a personal dictionary.
Neither tool charges separately for this. The Docs checker works on a free Google account, and Word’s Editor rides along with any Microsoft 365 subscription that includes the desktop apps.
Where the Built-In Checkers Go Quiet
Spelling and agreement errors are the easy part. The gap opens when you ask what the sentence sounds like rather than whether it is correct.
Word and Docs will not tell you that a paragraph reads as hesitant to a client, or that an email sounds curt. They do not offer a one-click rewrite that shortens a 40-word sentence into two. Plagiarism checking is absent from both as a standard feature.
Google draws another line by plan. The Workspace pricing page shows Gemini in Docs is not included on Business Starter at $7 per user a month, but is included on Business Standard at $14, as of October 2026. A small team on Starter gets the red and blue underlines, not the AI writing help.
What Grammarly Does That Neither Editor Attempts
Grammarly’s free tier is more than a spell checker. The plans page lists it at $0 with 100 AI prompts a month, plus the ability to see your writing tone. Corrections do not count as prompts, so the cap never touches ordinary underlines.
Pro is where the differences pile up. The same page lists Pro at $12 with 2,000 prompts per member a month, full-sentence rewrites with one click, adjustable tone, and plagiarism and AI-generated text detection. The page does not print a billing period next to the Pro price, so confirm whether it is monthly or annual at checkout.
The other difference is reach. Grammarly follows you into Gmail, Slack, a CMS, and a browser form, while Editor lives mostly inside Microsoft apps and the Docs checker never leaves Docs. If much of your writing happens outside a document, the built-in checkers never see it. For a detailed look at that prompt ceiling, read what the 100-prompt limit actually blocks.
Built-In Checkers and Grammarly Side by Side
The table uses the figures from each official page as of October 2026. Check each site before you buy, since free-tier limits move more often than headline prices.
| What you get | Word with Microsoft 365 Personal | Google Docs, free account | Grammarly Free | Grammarly Pro |
|---|---|---|---|---|
| Listed price | $9.99 a month or $99.99 a year | $0 | $0 | $12 per member |
| Spelling and grammar underlines | Yes, Microsoft Editor | Yes, 6 languages | Yes | Yes |
| Tone feedback | Not listed | No | See your writing tone | Adjustable tone |
| One-click sentence rewrites | Not listed | No | Within 100 prompts a month | 2,000 prompts a month |
| Plagiarism and AI text detection | No | No | No | Yes |
| Works outside its own app | Microsoft apps | Docs only | Browser extension and desktop app | Browser extension and desktop app |
| AI writing assistant | Copilot features included | Gemini only on Workspace Standard at $14 | 100 prompts | 2,000 prompts |
Read down the plagiarism row and the reach row. Those two lines are the entire case for Grammarly once the built-in checkers handle the basics.
The Yearly Bill for Four Writing Setups
- ● Word alone costs $99.99 a year on Personal
- ● Adding Grammarly Pro adds $144 at the listed rate
- ● Free Docs plus free Grammarly costs $0
Here is what the overlap costs across twelve months, using the listed prices on October 24, 2026. For Grammarly Pro the arithmetic assumes the $12 figure is a monthly rate, since the plans page does not say.
Setup A, Word only: Microsoft 365 Personal at $99.99 a year, paid annually. Editor is included, so the grammar layer costs nothing extra. Total: $99.99.
Setup B, Word plus Grammarly Pro: $99.99 for Microsoft 365 plus 12 times $12, which is $144. Total: $243.99, meaning Grammarly is the larger line item by $44.01.
Setup C, free Google Docs plus Grammarly Free: $0 plus $0. You get six-language spelling and grammar from Docs and 100 rewriting prompts a month from Grammarly. Total: $0.
Setup D, five-person team on Workspace Business Standard: $14 times 5 times 12 months, which is $840 a year, and Gemini in Docs is included. Adding Grammarly Pro for all five at $12 would add $720, bringing the year to $1,560.
| Setup | Annual cost | What the extra money buys |
|---|---|---|
| A: Word only | $99.99 | Editor, Copilot features, the Office apps |
| B: Word + Grammarly Pro | $243.99 | Plagiarism scan, 2,000 prompts, tone controls |
| C: Docs + Grammarly Free | $0 | Six-language underlines plus 100 prompts |
| D: Workspace Standard, five seats | $840 | Gemini in Docs for every seat |
| D + Grammarly Pro, five seats | $1,560 | Plagiarism and rewrites on top of Gemini |
The example shows the real question is not whether Grammarly is good. It is whether $144 a year of rewrites and plagiarism checks is worth more than the $0 to $99.99 you already spend for correct spelling.
The Two Groups Who Genuinely Need the Upgrade
Students and anyone submitting work under an originality policy are the first group. Neither Word nor Docs includes a plagiarism scan, and Grammarly Pro lists plagiarism and AI-generated text detection as a standard feature. Our comparison of Grammarly vs QuillBot for students weighs that scan against the cheaper paraphrasing route.
Heavy rewriters are the second group. If you reshape several paragraphs a day for tone, the 2,000-prompt allowance on Pro does work that the built-in checkers simply do not attempt. The built-in Copilot and Gemini assistants can rewrite too, but they live in specific plans and specific apps rather than following you everywhere.
Everyone else is in the free zone. If your writing is emails, internal notes, and the occasional report, correct spelling is the bar, and both editors clear it.
Running Both Without Doubling the Noise
If you keep Grammarly on top of Word or Docs, turn one checker down. Two tools flagging the same comma leave you with layered underlines and a habit of ignoring both.
A cleaner split is to leave the built-in checker on for spelling and agreement, then open Grammarly only for the final pass on anything that leaves the building. That keeps the 100 free prompts for rewrites that matter rather than spending them on drafts nobody reads.
Writers who worry their drafts sound machine-made should also read why AI-written copy still sounds like AI. No checker fixes that problem, since it comes from word choice rather than grammar.
Which Writing Setup Fits Your Week
- ● Occasional email writers stay built-in
- ● Rewriters and tone-checkers want Grammarly
- ● Students need the plagiarism scan
If you write emails and short documents: The built-in checker fits. Word with Editor or free Docs catches the errors readers notice, and Grammarly Free adds little beyond a tone label.
If you rewrite for tone several times a day: Grammarly Pro fits. The 2,000 prompts a month and adjustable tone do a job the underlines never will, and $12 is cheaper than a second editing tool.
If you submit work under an originality policy: Grammarly Pro fits, because the plagiarism and AI-text scan has no equivalent in Word or Docs. Pair it with the free Docs checker rather than paying for Workspace Standard.
If you run a small team on Google Workspace: Business Standard at $14 fits better than Starter at $7 if you want Gemini in Docs, and Grammarly stays optional. Add it only for the one or two people who write client-facing copy.
If you already pay for Microsoft 365 Family: The $129.99 a year plan includes Editor for the whole household, though the Copilot features cover the subscription owner only. Grammarly is a per-person upgrade on top, not a replacement.
A Two-Week Test Before Paying Anything
Write normally for two weeks with only the built-in checker switched on. Each time you wish the tool had done more, note whether the wish was a rewrite, a tone question, or a plagiarism check.
If the list is empty or nearly so, you have your answer and the $12 stays in your pocket. If it fills with rewrites, install Grammarly Free first and watch whether the 100 prompts last the month. If it fills with originality worries, Pro is the only one of these tools that scans for plagiarism, and the upgrade is the honest choice.
Confirm current pricing on the official site before subscribing. Microsoft, Google, and Grammarly all move their free-tier limits more often than their headline prices.
FAQ
Do I need Grammarly if I already have Microsoft Word?
For spelling and basic grammar, no. Word includes Microsoft Editor with a Microsoft 365 subscription, and Google Docs underlines spelling in red and grammar in blue at no cost. Grammarly earns its place when you want tone feedback, one-click rewrites, or a plagiarism check, and most of that sits behind the $12 Pro tier.
Does Google Docs have a built-in grammar checker?
Google Docs offers spelling and grammar suggestions in English, Spanish, French, German, Portuguese, and Italian, according to its own help page. It does not grade tone, suggest full rewrites on the free consumer account, or check for plagiarism.
How much does Grammarly cost compared with what Word and Docs give me free?
Grammarly Free is listed at $0 with 100 AI prompts a month, and the plans page lists Pro at $12 with 2,000 prompts per member a month, as of October 2026. The page does not label the billing period next to the Pro price, so confirm it at checkout.
Can I run Grammarly inside Word or Google Docs at the same time?
Yes. Grammarly runs as a browser extension and a desktop app, so it can sit on top of Word Online, Google Docs, Gmail, and most text boxes. Running two checkers on the same document means you see two sets of underlines, which some writers find noisy.
Is Grammarly Free enough, or do I need Pro to beat the built-in checkers?
Grammarly Free covers corrections without touching the prompt cap, since corrections are not prompts. If the built-in checker already catches your typos, Free Grammarly mostly duplicates it. The upgrade only pays off when you use the 2,000 rewriting prompts or the plagiarism scan regularly.
Sources
- Grammarly plans and pricing — checked 2026-10-24
- Compare all Microsoft 365 products — checked 2026-10-24
- Google Docs Editors Help: Correct your spelling and grammar in Google Docs — checked 2026-10-24
- Google Workspace pricing — checked 2026-10-24
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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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