Numbas lockdown app

The Numbas lockdown app allows students to access Numbas exams in a controlled environment.

At the moment, it's available for Windows, Linux, Mac and iOS. An Android version is in the works.

Download the app

The latest version is 3.0.3.


The macOS app is currently unsigned. You will have to allow unsigned apps before you can run this app.

We aim to have a signed version of the Numbas app available early in 2023.

iOS (iPhone / iPad)

Available on the App Store


If you need help using the app or encounter a problem, please email