In 2016 and 2017, Digital Promise conducted an independent third-party research study of the impact of Achieve3000 usage on the reading outcomes of English language learners in Cajon Valley Union School District in California. Cajon Valley USD piloted Achieve3000 during the 2016- 2017 school year with EL students at five elementary and middle schools. The goal of the pilot was to improve reading outcomes for EL students at risk of becoming long-term ELs (LTELs). A total of 521 students, 99 percent of whom do not speak English at home, and 13 teachers participated. This report summarizes the findings.