Writefull vs Yomu AI (2026): which should you pick?
As of Nov 12, 2026, Writefull grades higher than Yomu AI: 2.2 against 2.0 out of 4.0.
Checked Oct 9, 2026 and Nov 12, 2026 · graded Oct 10, 2026 and Nov 12, 2026 by ToolGPA
Writefull grades higher on ease of use and platforms. Yomu AI grades higher on value for money. They get the same grade on the free plan and features.
Price, platforms and features side by side. The table says where each price was read and when.
Writefull
Academic language feedback inside Word and Overleaf
Which one is for you
Pick Writefull if
- Fits if you write papers or a thesis in English and want feedback trained on journal articles
- Works for LaTeX writers who want the language check inside Overleaf
Look elsewhere if
- Pricey if you pay monthly, at $21 a month against $150 for the year, and no refunds are issued
- Not for you if you write in another language: its own models cover English only, and the GPT switch is in Overleaf, not Word
- Tight if you stay free on a long paper: suggestions stop at a daily quota, and Supercomplete and custom GPT prompts are Premium
- Watch out: Revise and Cite aren't in Premium or Group, and need an institutional license at an unpublished price
- Skip it if you want a desktop or phone app of its own, as it runs only inside Word, Overleaf and the browser
Pick Yomu AI if
- Fits if you write academic papers and want citations formatted for you
- Works for students who want to chat with their PDFs
Look elsewhere if
- Skip it if you want a stated free plan, as the pricing page lists none
- Tight if you write a lot, because Pro stops at 1,000 AI actions a month
- Pricey if you pay monthly, at $21 against $10 on the yearly plan
- Watch out: frontier models are on Ultra, and extra credits are bought separately
How we grade them
| 2.2GPAWritefullFair | 2.0GPAYomu AIFair | |
|---|---|---|
| Value for money | DPremium is $12.50 a month billed annually ($150), past the $12 dearer quarter for writing tools and half again the $8.33 middle, and it's the only way to lift the daily quota. Monthly is $21, no refunds are issued, and Revise and Cite aren't included at all. | C$10 a month billed yearly, $21 monthly, at the middle of writing tools. Ultra is $17 yearly. |
| Free plan and trial | CA free account gets language suggestions and most writing features in Word, Overleaf and Writefull X, but only up to a daily quota that resets the next day, and the listing can't say how big it is. Custom GPT edit prompts and Supercomplete are left out. | CThe site says to try it free with no credit card, but the pricing page lists no free plan and doesn't state limits. |
| Features | CIt covers language feedback and not much past it, a smaller job than most of this category: fixes from models trained on journal articles, tools to paraphrase or tighten a passage, title and abstract generators, and LaTeX on request in Overleaf. Its own models cover English only. | CAutocomplete, editing commands, citations, plagiarism check and PDF chat. Pro caps AI actions at 1,000 a month. |
| Ease of use | BNo store rating on record, so we go on the listing: it works inside Word as an add-in and is built into Overleaf, so there's nothing to set up and no pasting into another window. A free account is enough to see whether its suggestions suit you. | CNo store rating on record. You write in its web editor and learn its commands. |
| Platforms and integrations | BA Microsoft Word add-in, an integration built into Overleaf, and Writefull X in the browser, which is where most papers get written, and that's what earns the B. The listing shows no desktop or phone app of its own. | CWeb only, with Sourcely the only integration listed. |
| Best for | language checks inside Word and Overleaf | drafting academic essays with citations |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Writefull and Yomu AI. How we grade
Price against what you get
Writefull starts at $12.50 a month and scores 2.7 out of 4 on features, ease of use and platforms. Yomu AI starts at $10 a month and scores 2.0.
Writefull scores higher, and starts $2.50 a month higher: the question is whether the extra is worth that to you. Of the other writing tools on the chart, 16 score higher than Writefull for less, and 32 score higher than Yomu AI for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Writefull also covers grammar & style.
- Yomu AI also covers chat assistant, citations and long-form writing.
At a glance
| Writefull | Yomu AI | |
|---|---|---|
| Pricing | Free plan | Free trial |
| Starts at | $12.50 per month, billed annually ($150) | $10 per month, billed annually ($21 billed monthly) |
| Free plan | Language suggestions and most writing features in Word, Overleaf and Writefull X with a daily usage quota. Custom GPT edit prompts and Supercomplete are not included. | None |
| Free trial | None listed | The site says to try it free with no credit card required; the pricing page does not state the limits. |
| Web | ||
| Made by | Writefull (ThinqLab Limited) | AI Tools Inc |
| Price read from | my.writefull.com | yomu.ai |
| Checked | Oct 9, 2026 | Nov 12, 2026 |
Worth knowing
Writefull
- The Free plan has a daily quota on language suggestions and writing features.
- Writefull Revise and Writefull Cite are not part of Premium or Group plans; they need an institutional license.
- Writefull's own language models give feedback on English text only; other languages go through GPT.
- It runs inside Word, Overleaf and a browser. The terms of use state that refunds are not issued.
Yomu AI
- Pro caps AI actions at 1,000 a month; the pricing page says extra credits can be bought and do not expire.
- Frontier chat models are on Ultra; Pro lists efficient models.
- The yearly saving shown is 50%, and the monthly rates are higher at $21 and $35.
- The pricing page lists no free plan; a free trial is mentioned only in the site's description.
Key features
Writefull
- Language edits for research writing
- Suggests grammar and word-use corrections from Writefull's own models, which are trained on journal articles and cover English only.
- GPT edits for other languages
- Switching the language check to GPT revises non-English text in Overleaf. Premium adds a custom prompt to steer those edits; Word does not have the switch yet.
- Rewriting tools
- Paraphrase a passage, make it concise, scientific or punchy, split or join sentences, and get synonyms that fit the sentence.
- Title and Abstract Generators
- Suggests titles from a selected passage and drafts an abstract from the full text. Both run on Writefull's own models.
- LaTeX help in Overleaf
- TeXGPT writes LaTeX on request, and the Table and Equation Generators turn a prompt or an uploaded image into LaTeX code.
- Ask AI in Word
- An assistant inside the Word add-in answers writing questions, either asked freely or about a selected word or passage.
Yomu AI
- Document assistant
- Helps write sections and gives feedback on a document.
- Autocomplete
- Completes sentences and paragraphs as you type.
- Editing commands
- Paraphrase, expand, shorten, summarize and turn bullet points into text.
- Citations
- Find, insert and format citations in more than 700 styles, using the Sourcely tool.
- Plagiarism checker
- An originality check is included, and the site publishes an ethics statement.
- Chat
- Chat with PDFs, images and web search, and save sources to a library reused across documents.
Plans
Writefull
Free$0
Limited daily use of language edits, rewriting features, TeXGPT, Ask AI and the LaTeX generators. The quota resets the next day.
Premium$12.50
per month, billed annually ($150); $17 quarterly; $21 monthly
Unlimited suggestions and feature use, under a fair use policy, across Writefull for Word, Writefull for Overleaf and Writefull X.
Group$135
per additional user / year for seats 2 to 49; first seat $150
Annual Premium access for 2 to 100 people with an admin portal for inviting members. Seats beyond the 49th cost less, down to $105.
InstitutionCustom
Priced on expected student and researcher numbers. Covers all five tools, adding Writefull Revise and Writefull Cite.
Yomu AI
Pro$10
per month, billed annually ($21 billed monthly)
$120 a year. 1,000 AI actions per month and efficient AI models, with chat over PDFs and images.
Ultra$17
per month, billed annually ($35 billed monthly)
$204 a year. Unlimited AI actions and frontier models; chat models include generous monthly usage.
Ways to pay less
Writefull
- Annual discount
About 40% less with annual billing
Premium is $150 billed once a year, equal to $12.50 a month, against $21 billed monthly. Quarterly billing is $51, or $17 a month.
- Education
15% student discount for recommending Writefull
Students who email a staff member at their institution about Writefull for Institutions, copying Writefull in, get 15% off a Premium plan.
- Other savings
Group license discounts for 2 to 100 people
A group license lowers the yearly price per seat as the group grows, from $150 for the first seat to $135 for seats 2 to 49 and less beyond that.
Yomu AI
- Annual discount
Save 50% with yearly billing
The pricing page shows Pro at $10 a month and Ultra at $17 a month when billed yearly, against $21 and $35 monthly.
Common questions
Which is cheaper, Writefull or Yomu AI?
As of Nov 12, 2026, Yomu AI is cheaper to start with: $10 a month, against $12.50 a month for Writefull. Writefull starts at $12.50 per month, billed annually ($150), and Yomu AI starts at $10 per month, billed annually ($21 billed monthly).
Which has a free plan, Writefull or Yomu AI?
As of Nov 12, 2026, only Writefull has a free plan. Yomu AI does not, though it has a free trial.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.