XPRIZE, in partnership with the Barbara Bush Foundation for Family Literacy and the Dollar General Literacy Foundation, has announced two grand prize winners of the Adult Literacy XPRIZE, a multi-year, multi-phase competition focused on transforming the lives of low-literate adults across the nation.

The grand prize winners, Vinod Lobo-founded Learning Upgrade and People ForWords, will divide a $3 million purse, while each also receiving a $1 million achievement prize, for having the best performance in two key demographic groups: native English speakers and English language learners.

A panel of independent, expert judges determined the grand prize winners after their apps generated the greatest gains between a pre- and post-test, which were administered approximately one year apart to learners in a 12-month field test in Los Angeles, Dallas and Philadelphia, according to an XPRIZE news release.

The Learning Upgrade app, led by San Diego, Calif.-based Vinod Lobo, helps students learn English and math “the fun way” through songs, video, games and rewards. The app is available on both Android and iOS devices at no cost.