OxCal (and all the other standard radiocarbon calibration tools used by geologists and archeologists) can be cumbersome, unintuitive, and visually outdated.
I was frustrated trying to use them, so I built a simpler, user-friendly web app as an alternative: it features an elegant, responsive interface optimized for mobile, interactive graphs, easy sharing of calibration results, downloadable PDFs, clear built-in documentation, and adjustable parameters. And a bonus - there's no user accounts required, so it's easy for students to pick up and start getting an intuition for the underlying statistics.
Tech used: React, Blueprint, Rechart