Grammar, spelling, and clarity checks
Underlines mistakes and awkward phrasing as you write.
Write ItWriting Assistant
Grammarly
Comparison
Write It vs Grammarly for students
Grammarly is a proofreader that follows you across the internet. Write It is a writing toolkit that lives inside your doc. They solve different halves of the same assignment.
Write It teamUpdated 3 min read
These two get compared constantly, and the comparison is a little unfair in both directions. Grammarly is a proofreader that goes everywhere. Write It is a writing toolkit that goes deep in one place. Most of the confusion comes from treating them as the same category.
| Feature | Student toolkitWrite It | ProofreaderGrammarly |
|---|---|---|
| Grammar, spelling, and clarity checksUnderlines mistakes and awkward phrasing as you write. | Writing Assistant | |
| Types into the doc keystroke by keystrokeText appears the way it would if you had typed it, not as one pasted block. | ||
| AI humanizerRewrites AI-flavored phrasing so it reads naturally to a grader. | ||
| AI detection score on your draftTells you how much of your text reads as machine-written. | Different approach | |
| In-document AI agentPlans, drafts, and revises a multi-step writing task inside the document. | Generates, does not run multi-step | |
| Source discovery and Works CitedFinds sources, keeps a per-project library, and inserts a formatted bibliography. | Citation help, no source search | |
| Works in desktop apps and on mobileAvailable outside the browser. | Browser only | |
| Free tierUsable without paying. |
Types into the doc keystroke by keystroke
Text appears the way it would if you had typed it, not as one pasted block.
Write It
Grammarly
AI humanizer
Rewrites AI-flavored phrasing so it reads naturally to a grader.
Write It
Grammarly
AI detection score on your draft
Tells you how much of your text reads as machine-written.
Write It
GrammarlyDifferent approach
In-document AI agent
Plans, drafts, and revises a multi-step writing task inside the document.
Write It
GrammarlyGenerates, does not run multi-step
Source discovery and Works Cited
Finds sources, keeps a per-project library, and inserts a formatted bibliography.
Write It
GrammarlyCitation help, no source search
Works in desktop apps and on mobile
Available outside the browser.
Write ItBrowser only
Grammarly
Free tier
Usable without paying.
Write It
Grammarly
Rows describe what each product is built to do, not how well it does it. Grammarly’s proofreading is the more mature of the two and we would not pretend otherwise. Competitor details verified August 2, 2026. Other products change often, so check their site for the current feature set.
Where Grammarly is the better pick
Grammarly is the more mature proofreader, and it runs in desktop apps and on mobile as well as the browser. If a last-pass grammar check across many apps is the whole job, it is the better fit.
Write It is a browser extension: the full toolkit runs in Google Docs, with Microsoft Word on the web and Google Slides supported too. It does not follow you into desktop apps.
What Write It does that Grammarly does not
Grammarly reacts to text you have already written. Write It is built around the part before that — producing the draft and getting it into the document.
- Keystroke-level typing. Write It types into Google Docs one character at a time, with variable speed, occasional corrections, and pauses where a writer would pause. Pasting a finished essay into a doc produces a version history where the whole thing appears at once; typing produces one that looks like writing.
- AI humanizer. Rewrites the specific phrasing patterns that make text read as machine-written, while keeping your argument intact.
- Apollo Agent Mode. Give it the assignment and it plans, drafts section by section, and revises — in the document, not in a chat window you copy out of.
- Research Mode. Set a citation style and a course lens like AP Research or AP Seminar, search for sources, keep a library per project, then insert a formatted Works Cited.
None of those are grammar features. That is the point — they are a different half of the assignment.
The honest cost comparison
Write It is free to start with 5,000 tokens at signup. Plus is $10 a month or $96 a year with 100,000 tokens a month, and Premium is $15 a month or $144 a year with 200,000. Unused tokens roll over on both paid plans.
Grammarly prices its own tiers and changes them from time to time, so check their site rather than trusting a number on ours. What we will say is that the two are close enough that price is unlikely to be the deciding factor — what each one actually does should be.
A note on AI detection
Both products touch AI detection, and they approach it from opposite directions. Grammarly has leaned into transparency features around where text came from. Write It gives you a detector score on your own draft so you can see what still reads as machine-written, and a humanizer that rewrites those patterns.
Try the half Grammarly does not cover
Install Write It, open a Google Doc, and run one paragraph through the humanizer and the auto typer. Free account, no card.
Which one should you buy?
Pick Write It when
- Your work happens in Google Docs and you want the tool to live there instead of in a side panel that only comments on what you already wrote.
- You need more than corrections — drafting, rewriting AI-flavored text, finding sources, building a Works Cited.
- You want the typing itself to look like typing rather than a paste.
- You are writing AP Research or AP Seminar papers and want citation style and course lens set once.
Pick Grammarly when
- A last-pass grammar check is the whole job, with no drafting, research, or citations needed.
- You write in a lot of places — email, Slack, Word on the desktop, your phone — and want one checker everywhere.
Bottom line: Grammarly is the better proofreader and it follows you everywhere. Write It does more of the assignment: it drafts, it types, it humanizes, it finds and formats sources, and it does all of that inside the document. If you can only have one and you write essays in Google Docs, Write It covers more of the work. If you write in ten different apps and mainly want your grammar fixed, Grammarly is the better fit.
Frequently asked questions
Can I use Write It and Grammarly at the same time?
Yes. They are separate extensions doing different jobs, and running both in Google Docs is common. If you find the two sets of underlines visually noisy, turn off Write It’s Writing Assistant and keep the rest of the toolkit.
Is Write It a Grammarly replacement?
For proofreading alone, no — Grammarly is better at that. For getting an essay drafted, typed, humanized, and cited inside Google Docs, Write It covers a lot that Grammarly does not.
How much does Write It cost?
Write It is free to start with 5,000 tokens at signup. Plus is $10 a month or $96 a year and includes 100,000 tokens a month. Premium is $15 a month or $144 a year and includes 200,000 tokens a month. Unused tokens roll over on both paid plans.
Does Write It work outside Google Docs?
Write It runs in Google Docs with the full toolkit, in Microsoft Word on the web, and in Google Slides with a lighter feature set.
Will this get past an AI detector?
No tool can promise a particular detector score, and we do not make that promise. The humanizer rewrites AI-flavored phrasing so it reads naturally to a person; the AI Detector shows you what still reads as machine-written so you can decide what to do about it.