Analysis of consistent Zearn Math users and a comparable group of non-users in a large Southern district shows that students who used Zearn Math had higher levels of academic growth than similar students with no usage. This analysis used the quasi-experimental method, Coarsened Exact Matching (CEM), to examine the impact of Zearn Math across 1,111 students who completed an average of 3+ Zearn Math lessons per week, during the 2021-2022 school year and similarly matched peers who completed less than 1 lesson per week. Findings showed that consistent Zearn Math users grew an additional 14.6 scale score points on the state's standardized assessment; the equivalent of 1.3 years of learning as compared to non-users. Consistent Zearn Math users who started below standards grew an additional 20.9 scale points, in comparison to non-users who lost 4.4 scale score points; the equivalent of an additional 2.1 years of learning. Consistent Zearn Math users were also more likely to improve their Achievement Level and had a larger increase in the percent of students meeting standards. Results were consistent across historically marginalized subgroups.