Mindspark is an adaptive, personalized, and internet-based learning platform that helps students in classes 1 through 10 learn at their own pace. It works by asking students questions to assess their understanding, providing instant feedback and remediation when needed, and helping teachers identify learning gaps to address. A study of over 23,000 students across 239 schools found that higher usage of Mindspark was associated with significant increases in test scores of 0.19 standard deviations the first year and 0.20 standard deviations the second year, larger impacts than other learning tools. Mindspark has been successfully implemented in over 5,000 schools in India as well as internationally.