Paperpal

Paperpal promo code PAP20: 20% off paid plans

Paperpal is an AI writing tool built for academic research, run by Cactus Communications. It checks grammar, plagiarism and AI writing signals, helps you paraphrase, research and cite, and works in MS Word, Google Docs, Overleaf and the browser. There is a free plan; with promo code PAP20 you get 20% off the paid Paperpal plans.

Your bonus via our link
20% off Paperpal plans with promo code PAP20.
Get Paperpal →

Referral link disclosure: the button above is our referral link. If you sign up through it, we may earn a commission at no extra cost to you. The bonus and terms are set by Paperpal and can change — check them on the official site before you sign up.

How to get started

  1. Open paperpal.com through the link on this page.
  2. Create a free account; no credit card is required for the Free plan.
  3. Try the tools on the Free plan, then pick Prime or Pro (monthly or annual billing) on the pricing page.
  4. At checkout, enter promo code PAP20 in the discount code field.
  5. Check that the 20% discount is applied before you pay by debit, credit or prepaid card.

What is Paperpal?

Paperpal describes itself as "the AI writing tool built for academic research". Its main tools:

  • Grammar check with academic-style language and tone suggestions, plus consistency checks.
  • Plagiarism check that compares your text against 99B+ sources, and AI detection.
  • Paraphrase, Trim and Translate tools to restructure sentences and cut word count.
  • Research and Cite: Q&A over 250M+ research articles and citation lookup in APA, MLA, Vancouver and other styles (10,000+ styles listed).
  • Library and chat with PDFs: upload your references and ask questions about them.
  • Submission checks: 30+ pre-submission checks, journal fit and reference checks.
  • Illustrate (beta): AI-assisted figure generation.

Paperpal works in MS Word (add-in), Google Docs and Overleaf (via Chrome and Edge extensions) and on the web.

Who it's for

Paperpal targets researchers, faculty and students who write papers, theses and coursework in English, and it also offers institutional licences for universities and a separate product for publishers. The Prime plan is pitched "for academic writing and coursework all year round"; Pro is "for high-stakes work: papers, theses, clinical documents".

On privacy, Paperpal states that your files are visible only to you, that your work is never used to train AI, and that you can delete files at any time. The site shows FERPA, GDPR, HIPAA, ISO 27001 and ISO 42001 compliance badges.

Plans and limits

Paperpal shows prices in your local currency, with monthly or annual billing, so the amount depends on your country. The monthly limits per plan:

Feature Free Prime Pro
Grammar edits 200 / mo 20k / mo (+ consistency) Unlimited
Plagiarism check Lite report 10k words / mo 30k words / mo
AI detection Preview 25k words / mo Unlimited
Reference check — 10k words / mo 30k words / mo
Paraphrase, Trim, Translate, AI Review 5 / day 500 / mo Unlimited
Research Q&A + citation lookup 5 / day 500 / mo Unlimited
Chat with papers 5 files / mo 150 files / mo 500 files / mo
Library storage 300 MB 2 GB 10 GB

Pro also includes the full journal-fit report and custom expert-designed illustration. Institutions can ask sales@paperpal.com for institution-wide pricing.

Promo code, billing and refunds

Promo code PAP20 gives 20% off Paperpal plans. Discount codes are applied at checkout. Payment is by debit, credit or prepaid card through Stripe, and subscriptions auto-renew on the cycle you chose until you cancel them on the Membership & Billing page.

Refunds: if you cancel within 30 days of a first-time annual subscription or 7 days of a first-time monthly subscription, you are eligible for a refund; after that no refunds are given and the plan runs until expiry. You can move from monthly to annual mid-cycle, with the unused balance credited pro rata.

Paperpal affiliate program

Anyone with an academic audience (students, researchers, educators, influencers) can join the Paperpal affiliate program; you don't need to be a Paperpal user. Terms from the affiliate page:

  • 30% commission, non-recurring, on each Paperpal Prime purchase through your link, calculated on the price after discount.
  • 60-day cookie window.
  • A discount coupon of up to 20% on Prime for your audience, available in the dashboard.
  • Sign-up and tracking run on TrackDesk.
  • Payouts via Payoneer (preferred) or PayPal, with a $50 minimum, after a 31-day hold; calculated on the first working day of each month and paid by the 15th.

Payoneer has restrictions for Russian residents, so affiliates there may not be able to receive payouts that way.

Pros and cons

Pros

  • Built specifically for academic writing, with journal and reference checks
  • Works inside MS Word, Google Docs, Overleaf and the browser
  • Free plan without a credit card to test every tool
  • Clear refund window: 30 days annual, 7 days monthly (first purchase)
  • States that your documents are not used to train AI

Cons

  • Prices are not shown in a single currency; you only see yours on the pricing page
  • Free plan is tight: 200 grammar edits a month and 5 AI uses a day
  • Subscriptions auto-renew; no refunds after the first refund window

Frequently asked questions

What is the Paperpal promo code?

Use promo code PAP20 at checkout for 20% off Paperpal plans. Open Paperpal through the link on this page, choose a plan and enter PAP20 in the discount code field.

Is Paperpal legit?

Paperpal is operated by Cactus Communications Services Pte Ltd in Singapore, part of the Cactus group behind Editage. It publishes its refund and cancellation terms on the pricing page and offers support at hello@paperpal.com. Caveat: paid plans auto-renew, and refunds are only available within 30 days (annual) or 7 days (monthly) of a first purchase.

Is Paperpal free?

Yes, there is a Free plan with no credit card required. It includes 200 grammar edits a month, 5 uses a day of the AI writing and research tools, 5 PDF chats a month and 300 MB of library storage. Prime and Pro raise these limits.

Does Paperpal have a student discount?

Paperpal offers student discounts if you sign up with your institution email and recommend that your institution buys a Paperpal licence (copy sales@paperpal.com). Otherwise, promo code PAP20 gives 20% off.

How does the Paperpal affiliate program work?

You sign up on TrackDesk, share your link and earn a non-recurring 30% commission on Prime purchases within a 60-day cookie window. Payouts go via Payoneer or PayPal once you reach $50.

20% off Paperpal plans with promo code PAP20.
Get Paperpal →

Paperpal alternatives