The global impact of the COVID-19 pandemic on school education has been unprecedented, with widespread school closures and the need for education to be delivered remotely. By providing an overview of the continuity of learning and teaching during the 2019-2021 academic years, this study aims to contribute to a better understanding of the impact of the pandemic on the use of digital learning technologies in Wales. This study links usage data from the Government's National Learning Platform (Hwb) to national administrative school records for all pupils in maintained schools. It employs a quantitative methodology to model the inequalities in digital learning technology usage. Multiple linear regression is used to quantify the factors associated with pupils' use of the national learning platform before and during the pandemic, with a particular emphasis on school closures. The study's findings show notable differences in the level of learning platform usage across school sectors, with primary school pupils using the platform the most. Furthermore, school-level teacher usage of the platform and household socioeconomic status are key factors influencing pupil usage. The analysis also reveals that levels of learning platform usage prior to the first school closure were associated with learning platform usage in the first school closure period, and usage in the second school closure period was also associated with usage in the first school closure period.