Side by side
GradeLab vs HERON
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
AI grades exams, teachers teach more
AI tool that grades handwritten exams in seconds.
Primary task
Exam grading
Exam grading
Pricing
Unknown
Freemium · Free + from $3
Pricing details
Not documented — check the provider
Free + from $3
Billing cycle
Not documented
Pay-as-you-go
API access
Not documented
Not documented
Platforms
Web
Android
Integrations
Not documented
Not documented
Source rating
No rating recorded
No rating recorded
Catalog views
1.1k
253
Estimated monthly traffic
—
—
Catalog imported
30 Aug 2026
31 Aug 2026
Listed strengths
- Automates grading of handwritten exams
- Increase in grading accuracy
- Provision of detailed feedback
- Analyzes student performance
- Identifies areas for improvement
- Grades handwritten exams quickly
- Accurate handwriting interpretation
- Exams captured via smartphone
- Grading templates and rubrics
- Digital record creation
Listed limitations
- Limited to handwritten exams
- Depends on OCR accuracy
- Dependent on predefined answer key
- Possibly ignores creative answers
- Doesn't support non-textual answers
- Requires smartphone camera
- Possible misinterpretation of handwriting
- Copying tools limited
- Dependency on saved templates
- Limited handwriting styles recognized