Low- and lower-middle-income countries (LMICs) are currently facing a myriad of challenges in education; from large increases in school enrolments putting pressure on already strained school resources, to having millions of children out of school, with a sizable proportion of those in school learning poor. Education stakeholders in high- and low-income countries alike have tried innovative ways to counter these challenges. Digital learning offers a solution to many of the above challenges. A growing number of studies have documented digital learning solutions' effectiveness to improve learning outcomes with varying results. The question of whether digital learning solutions have any impact on learning outcomes has become much more important to inform policymakers. This evidence brief summarizes the existing literature's key findings on the application of digital learning solutions in low- and high-income countries. It examines literature specifically on the role of technology in improving learning outcomes from early childhood education to secondary education. The brief reviews 53 publications by government agencies, academic researchers, NGOs and independent research organizations.