Privacy

Girder for iPhone and iPad collects nothing. Your structures and results stay where you keep them.

What the app collects

Nothing. The app has no accounts, no advertising, no analytics and no tracking, and it makes no network connections of its own. The analysis and the design run on your device.

Your files

Structures are .girder files that you open and save through the Files app, in the place you choose: on the device, or in a cloud folder such as iCloud Drive. A file in a cloud folder is handled by that service under its own terms, not by the app.

Reports and pictures you share

A PDF report, a text report or a picture leaves the app only when you export it, through the iOS share sheet, to the place you choose.

Girder for the Mac and Windows

The desktop app likewise runs on your computer and keeps your files where you save them. It has no accounts, no analytics and no tracking.

Since version 0.3.0 it checks for updates: as it starts and every few hours it reads a small file listing the newest version from Google Cloud Storage, and downloads a newer version from there when there is one. Nothing about you or your structures is sent; like any server, Google Cloud Storage keeps ordinary request logs (such as the address the request came from). Help › Check for Updates Automatically turns this off.

This website

The website uses no cookies and no analytics. Like any website, its host keeps ordinary server logs.

Changes

If a later version of the app changes any of this, this page will say so before that version is released. Last updated 3 November 2026.

Questions

Email support@syncster.dev.