How we compare

There are good AI grading tools. Several of them beat us on price, on free-tier volume, or on how long they have been around, and each page below says so plainly. What none of them is built for is the thing we are: handwritten, multi-step work that has to be read rather than pattern-matched: a page of worked algebra, a lab write-up, a paragraph response, marked directly on the student’s own page, with the per-question record kept by student, class, and assignment.

Every figure on these pages was read off the vendor’s own pricing page and is dated. Pricing moves; if you find something out of date, tell us and we will correct it.

• NudgeLearn Grader vs CoGraderThe most established AI essay grader aimed squarely at K-12. Strong on typed essays against a rubric, with a large preloaded state-rubric set and the compliance paperwork schools ask for.
• NudgeLearn Grader vs EssayGrader.aiA narrowly scoped, well-executed essay grader with a very large rubric library and broad standards coverage. It does essays, and effectively only essays.
• NudgeLearn Grader vs GradescopeThe most mature AI-assisted grader in the category, built in and for higher education. Its rubric workflow, mark once and apply everywhere, is genuinely fast at cohort scale, and it handles handwritten problem sets and exams.
• NudgeLearn Grader vs Class CompanionA free-for-teachers AI feedback platform with a large shared assignment and rubric library, strongest on written responses across subjects.
• NudgeLearn Grader vs MagicSchool AIA very broad teacher toolkit covering lesson planning, differentiation, communication, and dozens of other tools, with grading as one feature among many.
• NudgeLearn Grader vs Brisk TeachingA free browser extension that works inside Google and Microsoft tools, strong on giving feedback on digital documents and inspecting writing process history.