OMR sheet scanner and grader for iPhone

scan multiple choice exams with your phone

OMR Grader turns your iPhone into a powerful answer sheet grading machine. Teachers, professors, and educators can create, scan, and grade multiple-choice bubble sheets in seconds—no expensive hardware needed.

GENERATE CUSTOM ANSWER SHEETS Create professional OMR bubble sheets with 50, 100, 120, or 160 questions. Choose 2- or 4-column layouts and add your school or institute's name. Download as a PDF, ready to print on any standard printer.

SET ANSWER KEYS IN SECONDS Tap the bubbles on your screen to set correct answers. Or, scan a pre-filled master sheet, and the app will create the answer key automatically. Set custom point values per question and penalty scoring for wrong or multiple-marked answers.

SCAN AND GRADE INSTANTLY Point your camera at a filled answer sheet for instant grading. The app detects the sheet, reads every bubble, and shows the score in real time. Works with printed sheets from any standard printer.

BATCH GRADING FOR LARGE CLASSES Have a stack of 100 or more sheets? Use any document scanner to digitize them, then load all images into the Batch Scanner. The app grades every sheet automatically—saving hours of manual work.

VIEW DETAILED RESULTS See each student's score with a color-coded, annotated sheet showing correct, incorrect, empty, and multiple-marked answers. Identify which questions students struggled with most.

EXPORT AND SHARE Export results as a CSV spreadsheet, PDF report, or ZIP archive. Easily share with colleagues, administrators, or parents.

PREMIUM FEATURES Free users get 20 scans per day. Upgrade to OMR Grader Premium for unlimited scans, batch grading, and priority support.

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