The Paperpal Insider’s Guide
Everything we know about Paperpal in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Paperpal
The Insider’s Guide
AI writing and checking assistant for academic papers
Every plan, grade, refund rule and rival among writing tools, read from Paperpal’s own pages.
Made by Cactus Communications · checked Oct 9, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Paperpal’s own pages, its app-store listings and our grades. Every fact in it is on Paperpal’s page too, where it is kept up to date. Checked Oct 9, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.6
GPA, above 32 of the 69 other writing tools we grade
Paperpal is an AI writing assistant from Cactus Communications aimed at researchers and students. It checks grammar and academic tone, paraphrases and translates text, finds and formats citations from a database of research articles, and runs plagiarism, AI-detection and journal submission checks. It runs on the web, as a Microsoft Word add-in, and as a browser extension that works inside Google Docs and Overleaf.
To get you started, here are 9 things to know about Paperpal, taken from its own pages and our grades.
- 1
Best for polishing academic papers before submission
Paperpal is a writing assistant for academic papers that fixes grammar and tone, finds and formats citations, and checks for plagiarism, inside Word, Google Docs and Overleaf.
- 2
Paid plans start at $12 a month
As its pricing page puts it: $12 per month, billed annually ($144).
- 3
There is a 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.
- 4
It runs on Web
Web, with a browser extension too.
- 5
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.
- 6
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.
- 7
Research and citations
Answers questions with cited findings from more than 300 million research articles and formats citations in over 10,000 styles.
- 8
A 2.6 GPA, above 32 of 69
That is against the other writing tools we grade, on value, the free plan, features, ease of use and platforms.
- 9
Keep it
To replace Paperpal you would be making a library of papers and sources to search. That is not a weekend's work, with an AI app builder or without one.
Paperpal at a glance
- Pricing
- Free plan, from $12 per month, billed annually ($144)
- Free plan
- Yes
- Free trial
- None stated
- Runs on
- Web, Browser extension
- Made by
- Cactus Communications
- Category
- Writing Tools
- Our grade
- 2.6 GPA, good
The report card
Best for polishing academic papers before submission
Paperpal is a writing assistant for academic papers that fixes grammar and tone, finds and formats citations, and checks for plagiarism, inside Word, Google Docs and Overleaf. The free plan stops at 200 grammar edits a month. Paying monthly costs about double the annual price, plagiarism checks have a monthly word cap on every plan, and there's no desktop or phone app.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | C | Prime 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. |
| Free plan and trial | C | Free 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. |
| Features | B | It 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. |
| Ease of use | B | No 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. |
| Platforms and integrations | B | Web, 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. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Paperpal is for
- 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
Who it is not for
- 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
Good to know
Good for
- Researchers preparing manuscripts for journal submission
- Students writing theses and essays who need citation help
- Non-native English speakers polishing academic prose
- Writers who want checks inside Word, Google Docs or Overleaf
Worth knowing
- 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.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$12
A month to start. There is a free plan too
Paperpal has a free plan. Paid plans start at $12 per month, billed annually ($144).
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 / Institution
Custom
Institution-wide pricing with access management and shared libraries, arranged through sales, with a free trial on request.
The 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.
Read from paperpal.com on Oct 9, 2026.
Ways to pay less
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%.
Stated on paperpal.comOther 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.
Stated on paperpal.comEducation
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.
Stated on paperpal.com
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
2
Places it runs: Web and Browser extension
AI writing and checking assistant for academic papers. Here is what it does, as its own site describes it, and what it covers: AI features, research, citations, grammar & style.
Web, a Microsoft Word add-in, and Chrome and Edge extensions that work inside Google Docs and Overleaf, with DeepL behind the translation.
- 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.
Where it runs
- Web
- Browser extension
What it works with
- Microsoft Word
- Google Docs
- Overleaf
- DeepL
Paperpal is made by Cactus Communications.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
32/69
Other writing tools it is graded above
Paperpal's GPA of 2.6 is higher than 32 of the 69 other writing tools we grade, and level with 10.
It stands best on features (B, above 36 of 69) and worst on free plan and trial (C, above 5).
Its paid plans start at $12 a month, against a middle price of $8 for the category: 32 of the 44 others that charge start lower.
On features, ease of use and platforms it scores 3.0 out of 4. 4 tools score higher and cost less.
Each grade against the category
Every bar is all 70 writing tools we grade, cut by the letter each got. Paperpal’s own letter is outlined.
- CValue for moneyAbove 13 of 69
- CFree plan and trialAbove 5 of 69
- BFeaturesAbove 36 of 69
- BEase of useAbove 32 of 69
- BPlatforms and integrationsAbove 32 of 69
Price against what you get
Each dot is one of 53 writing tools. Further left costs less; higher up scores better on features, ease of use and platforms. Paperpal is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
To replace Paperpal you would be making a library of papers and sources to search. That is not a weekend's work, with an AI app builder or without one.
It costs $144 a year.
What you could not
- A library of papers and sources to search.
- Grammar checking as you type, wherever you type.
- Citation records for millions of papers.
- AI features, unless you pay a model provider for each request yourself.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Paperpal’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Writefull, Trinka, Grammarly, QuillBot and Jenni AI
The 5 tools Paperpal is most often weighed against, with where each one differs from it.
- 2.2GPA
Writefull
Free plan · from $12.50/mo
Academic language feedback inside Word and Overleaf.
- Only Paperpal lists a browser extension.
- Paperpal also covers research and citations.
- 2.8GPA
Trinka
Free plan · from $48/yr
AI grammar checker and writing assistant for academic writing.
- Only Trinka lists a Windows app.
- Paperpal also covers research.
- 3.0GPA
Grammarly
Free plan · from $12/mo
Writing assistant for grammar, tone and rewrites in any app.
- Only Grammarly lists macOS, Windows, iOS and Android apps.
- Paperpal also covers research.
- Grammarly also covers AI agents and documents.
- 2.8GPA
QuillBot
Free plan · from $8.33/mo
AI paraphraser with grammar, summarizing and AI-detection tools.
- Only QuillBot lists macOS, Windows, iOS and Android apps.
- Paperpal also covers research.
- QuillBot also covers chat assistant.
- 2.4GPA
Jenni AI
Free plan · from $12/mo
AI writing workspace for cited academic papers.
- Paperpal also covers grammar & style.
- Jenni AI also covers web clipper.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
14
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Paperpal free?
Paperpal has a 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.
How much does Paperpal cost?
Paperpal lists 4 plans. Free: $0.
What platforms does Paperpal work on?
Paperpal is available on Web. It also has a browser extension.
Does Paperpal offer any discounts?
Paperpal publicly lists the following: About half off with annual billing; Prime Multi-year Saver: one payment for 2 or 3 years; Student discount through an institution email.
Does Paperpal have an Android app?
No Android app was listed when its pages were read on Oct 9, 2026. Paperpal is listed for Web.
Does Paperpal have an iPhone app?
No iPhone app was listed when its pages were read on Oct 9, 2026. Paperpal is listed for Web.
Is Paperpal open source?
Paperpal is not described as open source on its own site, as read on Oct 9, 2026.
What does Paperpal integrate with?
Paperpal's listing names Microsoft Word, Google Docs, Overleaf and DeepL.
Does Paperpal have a student discount?
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.
Who makes Paperpal?
Paperpal is made by Cactus Communications.
What are the alternatives to Paperpal?
The closest alternatives to Paperpal in our directory are Writefull, Trinka, Grammarly, QuillBot and Jenni AI.
How does Paperpal compare with other writing tools?
Paperpal's GPA of 2.6 is higher than 32 of the 69 other writing tools we grade, and level with 10.
Is Paperpal good value for money?
ToolGPA grades Paperpal C for value for money. Its paid plans start at $12 a month, against a middle price of $8 for the category: 32 of the 44 others that charge start lower.
Could I make my own version of Paperpal?
To replace Paperpal you would be making a library of papers and sources to search.
Where this guide comes from
The prices, plans, platforms and features were read from Paperpal’s own pages on Oct 9, 2026, and the grades were given on Oct 10, 2026. Graded from this listing, whose facts were read from Paperpal's own pages on 9 October 2026. Also tested with a demo account on 2026-05-05.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Cactus Communications. Prices change, so check paperpal.com before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
3,189
Tools graded, in 94 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
3,189
tools graded
94
categories
426
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Paperpal, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/paperpal
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Paperpal: The Insider's Guide", checked Oct 9, 2026. https://toolgpa.com/tools/paperpal
Know someone choosing between writing tools?
Send them this guide: toolgpa.com/tools/paperpal/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded writing tools after Paperpal, each with an Insider's Guide of its own.
- Writing Tools Insider's GuideEvery one of the 70 writing tools we grade, compared
- Microsoft Word Insider's GuideWord processor sold with Microsoft 365, free in the browser3.4 GPA
- Beat Insider's GuideFree, open-source Fountain screenwriting app for Mac and iOS3.2 GPA
- JotterPad Insider's GuideMarkdown and Fountain editor for books, papers and screenplays3.2 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Paperpal’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Paperpal is a trademark of its owner, and this guide is not made, paid for or approved by Cactus Communications. Prices and plans change: check paperpal.com before you buy.