Papyrus Papers is a local-first Mac app. These terms describe Mac App Store distribution, the 30-day trial, the lifetime unlock, and your responsibilities when you import, sync, export, or share your own research material.
Distribution
Papyrus Papers is distributed through the Mac App Store. Apple's standard app terms and App Store rules also apply. This public website does not provide an alternate installer.
Trial and Lifetime Unlock
- The Mac App Store build is designed to start with a 30-day full-access free trial.
- After the trial, continued use requires a one-time lifetime unlock.
- The lifetime unlock is a non-consumable in-app purchase priced at $3.99 USD in the United States, with final pricing, taxes, currency conversion, family sharing, refunds, and purchase records handled by Apple.
- Papyrus Papers does not use a recurring subscription. If Apple's account-management page does not show an active subscription for Papyrus Papers, that is expected.
- Restoring purchases uses Apple's App Store purchase history for the Apple ID signed in on the Mac.
Your Content
You keep ownership of the PDFs, notes, annotations, metadata, exports, and project material you put into Papyrus Papers. You are responsible for making sure you have the right to store, process, export, sync, or share that material.
Local Storage, Sync, and Backups
Papyrus Papers stores your library locally on your Mac unless you explicitly export, share, or configure sync. The v1.0 sync path is WebDAV: you choose the server, credentials, and remote folder. Papyrus Papers is not responsible for the availability, retention, security, or terms of any WebDAV server or third-party storage provider you configure.
Metadata and Third-Party Services
When you use metadata enrichment, Papyrus Papers may contact public scholarly services such as Crossref, arXiv, Semantic Scholar, OpenAlex, OpenLibrary, NCBI / PubMed / PMC identifier services, Zenodo, and doi.org. These requests are used for lookup and enrichment and may include public identifiers or search terms such as DOI, arXiv ID, ISBN, PMID, title, or author names. Those third-party services are governed by their own terms and availability.
Acceptable Use
Do not use Papyrus Papers to violate law, infringe intellectual property rights, evade access controls, overload third-party services, or sync or share material you are not permitted to handle. If you connect Papyrus Papers to a WebDAV server, keep your credentials secure and use a server you trust.
No Professional Advice
Papyrus Papers helps organize and read research material. It does not provide legal, medical, financial, engineering, academic, or publication advice. You are responsible for checking source documents and exported citations before relying on them.
Warranty and Liability
Papyrus Papers is provided as-is to the fullest extent permitted by law. The developer does not guarantee uninterrupted operation, perfect metadata extraction, compatibility with every PDF, or availability of third-party services. To the fullest extent permitted by law, the developer is not liable for indirect, incidental, special, consequential, or punitive damages, or for loss of data, profits, or goodwill.
Changes
These terms may be updated as Papyrus Papers changes. Material updates will be reflected on this page with a new last-updated date.
Contact
For questions about these terms, email zdfu189@gmail.com or see the Support page.
Last updated: May 19, 2026