Comparison

GradeChum Scanner vs OMR Sheet Scanner

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

GradeChum Scanner

Features
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GradeChum Scanner is a powerful companion app that helps educators streamline the grading process by digitizing student submissions. Simply use your mobile device to scan answer sheets, and they’ll be securely uploaded to your GradeChum accountβ€”ready for automatic grading and results generation. Whether you’re managing quizzes, exams, or paper-based activities, GradeChum Scanner makes it easy to move from manual checking to fast, accurate, and organized grading. Key Features: - Scan student answer sheets instantly using your phone - Secure upload directly to your GradeChum account - Compatible with GradeChum’s auto-grading engine - 100% free to use with monthly usage limits (no in-app purchases) - Works seamlessly with your existing GradeChum web account This app is designed for teachers and educators looking for a smarter, faster way to handle paper-based assessments. Whether you’re in a classroom or working remotely, GradeChum Scanner helps you save time and focus more on teaching. Note: A GradeChum account is required to access uploaded scans and grading features. You can sign up for free at https://app.gradechum.com/signup.

About

OMR Sheet Scanner

Features
Read full description

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 β€” 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. Add your school or institute name. Download as PDF ready to print on any standard printer. SET ANSWER KEYS IN SECONDS Tap bubbles on screen to set correct answers. Or scan a pre-filled master sheet and the app creates 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 Batch Scanner. The app grades every sheet automatically β€” 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 CSV spreadsheet, PDF report, or ZIP archive. Share with colleagues, administrators, or parents easily. PREMIUM FEATURES Free users get 20 scans per day. Upgrade to OMR Grader Premium for unlimited scans, batch grading, and priority support. Privacy Policy: https://omrgrader.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

GradeChum Scanner4 screens
OMR Sheet Scanner4 screens

Verdict

The call

The clearest difference is in-app purchases: GradeChum Scanner at none against OMR Sheet Scanner's 2. On price, update cadence, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. OMR Sheet Scanner sells 2 in-app purchases, starting at $4.99 per month. GradeChum Scanner asks for nothing beyond the download.

UpkeepUpdate frequency

GradeChum Scanner ships an update weekly, OMR Sheet Scanner every 4 days. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

Scorecard1 real difference Β· 5 level
GradeChum Scanner versus OMR Sheet Scanner: the parameters behind the verdict, then further details
ParameterGradeChum ScannerOMR Sheet Scanner
PriceFreeFree
Update frequencyWeeklyEvery 4 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhoneiPhone, iPad β€” better
Requires iOS16.4 β€” better17
Further details β€” not scored
Size54 MB9 MB
Age rating4+4+
DeveloperCodeChum Software Solutions Inc.LUTFULLAH SAFDARI

In-app purchases

None

GradeChum Scanner

No in-app purchases

2 purchases

OMR Sheet Scanner

Subscriptions2
  • OMR Grader Premium$4.991 Month
  • OMR Grader Premium$44.991 Year

Questions

Is GradeChum Scanner free?
GradeChum Scanner is free to download, with no in-app purchases.
Is OMR Sheet Scanner free?
OMR Sheet Scanner is free to download, with in-app purchases available.
Do GradeChum Scanner or OMR Sheet Scanner have ads?
Neither GradeChum Scanner nor OMR Sheet Scanner shows ads.
Which is updated more often, GradeChum Scanner or OMR Sheet Scanner?
GradeChum Scanner ships an update weekly, and OMR Sheet Scanner every 4 days. Most recently, GradeChum Scanner was updated on September 14, 2026 and OMR Sheet Scanner on September 10, 2026.

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