Acellus is an educational technology company specializing in online learning solutions for K-12 students. They generate revenue through subscriptions to their comprehensive digital curriculum, which includes interactive video lessons and assessments. Founded by the International Academy of Science, Acellus has gained prominence for its adaptive learning platform that personalizes education to meet individual student needs. Key historical milestones include the development of their proprietary Prism Diagnostics technology, which identifies and addresses learning gaps in real-time.