Paperpal vs pdfAssistant.ai
Paperpal
paperpal.compdfAssistant.ai
pdfassistant.aiSide by side
| Figure | Paperpal | pdfAssistant.ai |
|---|---|---|
| Price from | $11.58/mo | $3.50/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Plans published | 15 | 6 |
| Spec score · AI PDF Assistants | 8.9 (#4) | 7.7 (#18) |
| Compliance | Paperpal states that it is GDPR compliant, PECR ready, ISO/IEC 27001:2022 certified, CSA STAR Level 1 listed, FERPA compliant, and ISO/IEC 42001:2023 certified. | The maker says its security controls are SOC 2 Type 2 audited. |
| Integrations | Official pages list a web app, Microsoft Word add-in, Google Docs support, Chrome extension and Overleaf support. | The site lists MCP integrations for ChatGPT, Claude, and Codex, and states that MCP access requires a paid plan. |
| Product | Paperpal is an AI research and academic writing workspace with writing, citation, paraphrasing, and integrity-check tools. | pdfAssistant is a no-code, AI-powered PDF platform that turns natural-language requests into reusable workflows for batch processing. |
| Security | Paperpal states that data is encrypted in transit with 256-bit encryption and at rest with KMS keys, and that it uses SSAE 18/SOC1-certified data centers. | The maker states that transfers use TLS 1.3, stored files use AES-256, and files are deleted within 24 hours after processing. |
| Support | Paperpal provides a Help Center and lists [email protected] as its contact email. | The FAQ directs users to a support portal and says its support team is human-powered. |
Plans
Paperpal
- Prime$144 a year
- Prime$25 a month
- Pro$348 a year
- Pro$59 a month
- FreeFree
- FreeFree
- Prime$12 a month
- Paperpal Prime$25 a month
- Prime Monthly$25 a month
- Pro$29 a month
pdfAssistant.ai
- StarterFree
- Extra Credits (4,000)$36.99, paid once
- Business$41.99 a year
- Plus$83.88 a year
- Enterprise$104.99 a year
- Pro$209.88 a year
In their own words
Paperpal
Paperpal is an AI research and academic writing workspace for students and researchers, combining writing help, citation tools, and academic checks. Users can upload references and PDFs, ask questions, and receive cited findings from more than 300 million verified research articles. Writing tools cover academic suggestions, paraphrasing, tone changes, word reduction, grammar, proofreading, and citation formatting. Its checker suite looks for plagiarism and AI-writing patterns, checks references, and assesses journal submission readiness. Paperpal runs on the web and as a browser extension; it also offers a Microsoft Word add-in and browser-extension support for Google Docs and Overleaf. The free plan includes 200 language suggestions, five generative AI uses per day, 7,000 plagiarism-check words per month, and five daily AI-detection scans of up to 1,200 words each. Prime costs $144 a year billed annually, or $25 a month billed monthly. Pro costs $348 a year billed annually, or $59 a month billed monthly. Paperpal says it does not train its AI models on user documents, uploads, or personal information, and allows document deletion.
pdfAssistant.ai
pdfAssistant.ai is a web-based, no-code PDF platform that turns natural-language requests into reusable workflows for batch processing. It provides more than 40 operations, including compression, merging, extraction, redaction, conversion, and watermarking. Saved workflows can run on uploaded folders containing hundreds or thousands of documents. AI Studio handles one-off analysis, summaries, key-term extraction, and PDF creation from descriptions. The service supports multiple PDFs per chat and scanned PDFs, with exports including PDF, DOCX, XLSX, PPTX, Markdown, PDF/A, PDF/X, PNG, JPEG, TIFF, GIF, BMP, FDF, XFDF, XML, XDP, and XFD. MCP integrations are listed for ChatGPT, Claude, and Codex, but require a paid plan. Adobe Express add-ons export PDF/X, PDF/A, or custom images. Starter is free with preview mode; full downloads require payment. The maker says transfers use TLS 1.3, stored files use AES-256, and files are deleted within 24 hours.