This paper explores which online assessment tool is preferred within a classroom setting. Four Geometry classes were given weekly formative assessments using DeltaMath, Classkick, and Desmos. The students’ scores from these assessments and opinions were collected and analyzed to find which program would be most beneficial for the classroom. The literature review covers a variety of resources that determine effective classroom teaching in which technology is used within the classroom. The articles vary in what practices most benefit the students when utilizing online assessments, and allows a better view into what processes should be considered before implementing online assessments into a classroom. This research was done in a specific classroom, and the results may not be the same if utilized in any other classroom, but the data gives some valuable insight to allow others to make a choice in what program may be most effective for their classroom as well.