# Paperpal

> AI writing and checking assistant for academic papers

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.

- **Category:** Writing Tools
- **Made by:** Cactus Communications
- **Website:** https://paperpal.com
- **Runs on:** Web, Browser extension
- **Facts last checked:** Oct 9, 2026

## Pricing

Paperpal has a free plan. Paid plans start at $12 per month, billed annually ($144).

- **Pricing model:** Free plan
- **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.
- **Free trial:** None listed.

| Plan | Price | What you get |
| --- | --- | --- |
| 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. |

Read from https://paperpal.com/pricing on Oct 9, 2026. Prices change, so confirm with Paperpal before buying.

## Ways to pay less

- **About half off with annual billing** (Annual discount): 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%. Source: https://paperpal.com/pricing
- **Prime Multi-year Saver: one payment for 2 or 3 years** (Other savings): 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. Source: https://paperpal.com/pricing
- **Student discount through an institution email** (Education): 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. Source: https://paperpal.com/pricing

## Key features

- **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.

## 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.

## Works with

Microsoft Word, Google Docs, Overleaf, DeepL

**Tags:** Grammar & style, Citations, Research, AI features

## Alternatives

- [Writefull](https://toolgpa.com/tools/writefull): Academic language feedback inside Word and Overleaf. [Compare](https://toolgpa.com/compare/paperpal-vs-writefull)
- [Trinka](https://toolgpa.com/tools/trinka): AI grammar checker and writing assistant for academic writing. [Compare](https://toolgpa.com/compare/paperpal-vs-trinka)
- [Grammarly](https://toolgpa.com/tools/grammarly): Writing assistant for grammar, tone and rewrites in any app. [Compare](https://toolgpa.com/compare/grammarly-vs-paperpal)
- [QuillBot](https://toolgpa.com/tools/quillbot): AI paraphraser with grammar, summarizing and AI-detection tools. [Compare](https://toolgpa.com/compare/paperpal-vs-quillbot)
- [Jenni AI](https://toolgpa.com/tools/jenni-ai): AI writing workspace for cited academic papers. [Compare](https://toolgpa.com/compare/jenni-ai-vs-paperpal)

## Sources

The prices, plans, platforms and features above were read from these pages on Oct 9, 2026:

- https://paperpal.com/pricing
- https://paperpal.com/
- https://edit-api.paperpal.com/api/subscription/v3/packages?countryCode=us&packMode=all
- https://paperpal.com/paperpal-ms-word-add-in
- https://paperpal.com/llms.txt

Page: https://toolgpa.com/tools/paperpal
Listed by ToolGPA (toolgpa.com).