GradūsGradūs is Latin for a step — a degree, a stage on a climb. Same root as grade and graduate. The old primers were called Gradus ad Parnassum: a step toward mastery. Not a dump of courses. The next honest step.

Privacy

U.S. product; dollars. Operated by Gradus.

Placement answers, practice logs, and sprint checkboxes are stored on this device in localStorage unless you email us a path or pay through Stripe.

If you submit an email (“keep my path” or checkout), we use it to send the path, receipts, and catalog briefings. We do not sell lists.

Stripe processes cards. We never see full card numbers. Team roster CSVs you upload stay in this browser unless you export them.

We do not run ads. We do not use the placement answers to train third-party models.

To delete on-device data, clear this site’s storage in your browser.