Paperpal vs Yomu AI (2026): which should you pick?
As of Nov 12, 2026, Paperpal grades higher than Yomu AI: 2.6 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
Paperpal grades higher on features, ease of use and platforms. They get the same grade on value for money and the free plan.
Price, platforms and features side by side. The table says where each price was read and when.
Paperpal
AI writing and checking assistant for academic papers
Which one is for you
Pick Paperpal if
- Fits if you're getting a manuscript ready for a journal and want it checked before you send it
- Works for writers whose first language isn't English and whose prose needs to sound academic
Look elsewhere if
- Tight if you're staying free, with 200 grammar edits a month and 5 tool uses a day
- Pricey if you pay monthly, at $25 for Prime against $144 for the whole year, and $59 for Pro against $348
- Watch out: plagiarism checks have a monthly word cap on every paid plan, and going over means buying an add-on
- Watch out: the full Journal Fit report needs Pro, at $29 a month billed yearly
- Not for you if you want a desktop or phone app, as it runs on the web, in Word and in Chrome and Edge extensions
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
| 2.6GPAPaperpalGood | 2.0GPAYomu AIFair | |
|---|---|---|
| Value for money | CPrime is $12 a month billed annually ($144), which is right at the dearer quarter for writing tools, and covers 20,000 grammar edits and 10,000 words of plagiarism checks a month. Pay monthly and it jumps to $25. Pro, with unlimited edits and the full Journal Fit report, is $29. | C$10 a month billed yearly, $21 monthly, at the middle of writing tools. Ultra is $17 yearly. |
| Free plan and trial | CFree with no card, but these are caps you'll meet quickly: 200 grammar edits a month, 5 uses a day of paraphrase, trim, translate and research questions, chat with 5 files a month and 300 MB of storage. Enough for an essay, not for a thesis. | 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 | BIt covers the whole job of getting a paper out: academic grammar and tone, paraphrasing, DeepL translation in over 30 languages, citations in over 10,000 styles, answers drawn from 300 million articles, plagiarism and AI detection, and over 30 pre-submission checks. | 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 sits where you already write, as a Word add-in and a browser extension for Google Docs and Overleaf, with nothing to set up first and no card needed to start. | CNo store rating on record. You write in its web editor and learn its commands. |
| Platforms and integrations | BWeb, a Microsoft Word add-in, and Chrome and Edge extensions that work inside Google Docs and Overleaf, with DeepL behind the translation. Plugging into the places you already write is what earns the B; no desktop or mobile app is listed. | CWeb only, with Sourcely the only integration listed. |
| Best for | polishing academic papers before submission | 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: Paperpal and Yomu AI. How we grade
Price against what you get
Paperpal starts at $12 a month and scores 3.0 out of 4 on features, ease of use and platforms. Yomu AI starts at $10 a month and scores 2.0.
Paperpal scores higher, and starts $2 a month higher: the question is whether the extra is worth that to you. Of the other writing tools on the chart, 4 score higher than Paperpal 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
- Paperpal also covers research and grammar & style.
- Yomu AI also covers chat assistant and long-form writing.
At a glance
| Paperpal | Yomu AI | |
|---|---|---|
| Pricing | Free plan | Free trial |
| Starts at | $12 per month, billed annually ($144) | $10 per month, billed annually ($21 billed monthly) |
| Free plan | 200 grammar edits a month, 5 uses a day of paraphrase, trim, translate and research Q&A, chat with 5 files a month, lite plagiarism and Journal Fit reports, and 300 MB of library storage. | 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 | ||
| Browser extension | ||
| Made by | Cactus Communications | AI Tools Inc |
| Price read from | paperpal.com | yomu.ai |
| Checked | Oct 9, 2026 | Nov 12, 2026 |
Worth knowing
Paperpal
- The Free plan stops at 200 grammar edits a month and 5 uses a day of the paraphrase, translate and research tools.
- Plagiarism checks have a monthly word cap on every paid plan; going over it means buying a one-time add-on valid for a month.
- The one-time multi-year option exists for Prime only, and the full Journal Fit report needs Pro.
- No desktop or mobile app is listed: it runs on the web, in a Word add-in and in Chrome and Edge extensions.
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
Paperpal
- Grammar and consistency checks
- Suggests grammar, tone and consistency fixes tuned to academic writing. The Free plan allows 200 edits a month, Prime 20,000 and Pro has no cap.
- Paraphrase, trim and translate
- Rewrites sentences in an academic tone, cuts word count and translates text, with translation powered by DeepL in over 30 languages.
- Research and citations
- Answers questions with cited findings from more than 300 million research articles and formats citations in over 10,000 styles.
- Chat with PDFs and a library
- Upload papers and ask questions about them: 5 files a month on Free, 150 on Prime and 500 on Pro, with library storage from 300 MB to 10 GB.
- Plagiarism and AI detection
- Checks similarity against a stated 99 billion sources and flags AI-written text. Plagiarism checks are capped at 10,000 words a month on Prime and 30,000 on Pro.
- Submission readiness checks
- Runs more than 30 pre-submission checks on language, structure, figures, disclosures and metadata. The full Journal Fit report is limited to Pro.
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
Paperpal
Free$0
200 grammar edits a month, 5 writing and research uses a day, chat with 5 files a month and 300 MB of library storage. No card required.
Prime$12
per month, billed annually ($144); $25 billed monthly
20,000 grammar edits, 10,000 words of plagiarism checks, 25,000 words of AI detection and 500 writing and research uses a month, with 2 GB of storage.
Pro$29
per month, billed annually ($348); $59 billed monthly
Unlimited grammar edits, AI detection and writing tools, 30,000 words of plagiarism checks a month, full Journal Fit reports and 10 GB of storage.
Enterprise / InstitutionCustom
Institution-wide pricing with access management and shared libraries, arranged through sales, with a free trial on request.
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
Paperpal
- Annual discount
About half off with annual billing
Prime costs $144 billed annually against $25 a month ($300 over a year), and Pro $348 against $59 a month ($708), a saving of roughly 51 to 52%.
- Other savings
Prime Multi-year Saver: one payment for 2 or 3 years
Prime can be bought for 2 years at $229 or 3 years at $289 as a single payment with no auto-renewal. The option is not offered for Pro.
- Education
Student discount through an institution email
Paperpal's pricing FAQ offers a discount to students who sign up with an institution email address and recommend that their institution buy a license.
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, Paperpal or Yomu AI?
As of Nov 12, 2026, Yomu AI is cheaper to start with: $10 a month, against $12 a month for Paperpal. Paperpal starts at $12 per month, billed annually ($144), and Yomu AI starts at $10 per month, billed annually ($21 billed monthly).
Which has a free plan, Paperpal or Yomu AI?
As of Nov 12, 2026, only Paperpal has a free plan. Yomu AI does not, though it has a free trial.
Which platforms do Paperpal and Yomu AI run on?
As of Nov 12, 2026, only Paperpal lists a browser extension. Both list a web app. A platform missing from a listing is one its maker's pages did not mention.
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.