DESKTOP LICENSE & USE

Terms and license information

Updated October 18, 2026. This page explains the Fyllyo Mac app and the license described on our website.

What Fyllyo does

Fyllyo is a PDF app for Mac. Its free tools read, fill in, comment on, sign (including with a certificate), organize, combine, split, recognize text in and password-protect PDFs. They also edit text, find and redact, remove hidden data, make PDFs smaller, and open, fill, print and save XFA forms and forms that calculate their totals. Fyllyo Paid adds preparing PDF forms from client documents using AI and code running on your computer, with a library of ready forms, your own custom forms and client profiles.

The free tools

The free tools need no account and don’t expire. They are provided as they are; we may change or improve them in updates.

Your Fyllyo Paid license

Fyllyo Paid is form filling from client documents. It is a one-time purchase of a lifetime license with free lifetime updates. It needs a Fyllyo account. The license is active on one Mac at a time; you can free it and activate it on another. A five-day trial of form filling, started by signing in, lets you evaluate it. The app checks your license online about once a month and keeps working for 30 days after a missed check. See pricing for the current offer.

Updates

The app downloads updates by itself and installs them when you quit. Rarely, we may require an update, for example to fix a security problem; until you update, that version stops working.

Local filling and cloud template setup

Client documents are processed locally. Adding a custom template is a separate step: Fyllyo Cloud receives your blank fillable PDF and setup instructions, and the finished template is saved to your account. Do not include client information in either. Fyllyo’s hosted setup is paid in credits bought in your account. No API key is required; if you choose your own provider key, that provider’s terms and charges apply.

Review before you use or share a PDF

AI output can be incomplete or incorrect. Check the source information, calculations, formatting, and completed PDF before submitting or sharing it. You remain responsible for its contents and for using the correct form version. Fyllyo does not guarantee acceptance by any agency, provide legal or tax advice, or e-file forms.

Check a redacted PDF before you share it. Redaction removes what you mark and the same words where Fyllyo finds them, but it can’t find text you didn’t mark, or words in a scan whose text hasn’t been recognized. A certificate signature shows who signed and that the file hasn’t changed; whether someone trusts it depends on your certificate.

Your documents and permissions

Only process documents you are authorized to use. You retain your rights in your source documents and completed forms. You control local files, access to your computer, backups, and deletion. Do not use Fyllyo for fraudulent or unlawful activity, or to remove protections from documents you are not entitled to change.

Upcoming features

Features marked as future releases, including general document pipelines and spreadsheet output, are not part of the app today. Joining a waitlist is not a purchase.

Privacy and support

Our privacy policy explains local processing, cloud setup, what else the app connects to, crash reports, website analytics, and feedback submissions. For questions about your license or a purchase, contact arun@fyllyo.com.

Archived terms for the previous web app and browser extension →