TESSA Privacy Policy
In short: TESSA does not collect, store or send any personal information. There is no account, no sign-up, no analytics, no telemetry and no advertising. Your documents stay on your computer and are never uploaded to us or anyone else.
Who we are
TESSA is developed by Adithyan Lalu, an individual developer. Contact: adhy092018@gmail.com.
Information we collect
None. TESSA has no servers of its own and does not send your documents, file names, usage data, crash reports or device identifiers anywhere.
What stays on your computer
| What | Where |
|---|---|
| Your projects and documents | Wherever you save them (default: Documents\TESSA) |
| Build output and file history | A .tessa folder inside each project |
| Settings and your personal spelling dictionary | The app's settings folder (for example %APPDATA%\TESSA) |
| Error logs | The app's log folder. Logs are never sent automatically; you can open the folder with Open Log Folder in the app menu and choose to share a log with us if you ask for support. |
You can delete any of this at any time by deleting the files or uninstalling the app.
When TESSA connects to the internet
TESSA works offline. It only uses the internet in these cases, and never to send your documents:
| When | What is sent | To whom |
|---|---|---|
| A document needs a LaTeX package that is not on your computer yet (usually only the first time) | A request for the package files | The package server of the open-source Tectonic project. The content of your document is not sent. |
| You choose Download common packages for offline use | Requests for common LaTeX packages | The Tectonic package server |
| You use Import a reference and type a DOI or arXiv ID | Only the DOI or arXiv ID you typed | doi.org or arxiv.org, which return the BibTeX entry |
| You click a web link | The link is opened in your web browser | The website you clicked |
These services receive your IP address, as any website does, and have their own privacy policies. TESSA does not add any identifier to these requests.
This website
The TESSA website sets no cookies and uses no analytics or tracking. To show it, your browser contacts the web host (Vercel), Google Fonts (for the typefaces) and jsDelivr (for the 3D graphics library); downloads come from GitHub. Like any web server, these services see your IP address and keep standard access logs under their own privacy policies.
Children
TESSA does not collect personal information from anyone, including children.
Changes
If a future version changes any of the above, this page will be updated before that version is released, and the effective date at the top will change.
Contact
Questions about privacy: adhy092018@gmail.com.