CoGrader vs SchoolAI vs Polarbear Study vs GradingPal

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
CoGrader
vs
Competitor 1
SchoolAI
Competitor 2
Polarbear Study
Competitor 3
GradingPal
Compare
4 tools · best value per row highlighted
Your tool CoGrader
cograder.com
Teachers claim they're grading essays 80% faster with CoGrader
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Competitor SchoolAI
schoolai.com
Make main Remove
Competitor Polarbear Study
trypolarbear.com
Make main Remove
Competitor GradingPal
gradingpal.com
Teachers upload assignments and get draft grades back in minutes
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
56.7Kvisits/mo
201.8Kvisits/mo
112.9Kvisits/mo
8.3Kvisits/mo
MoM change
▲ 42.4%
▲ 9.9%
▼ 14.0%
▲ 26.5%
6-month growth
-43.9%
-63.3%
+47.7%
+316.3%
Global rank web
#621,596
#189,848
#317,842
#3,434,577
Avg. last 3 months
47.6K
203.1K
127.3K
6.4K
Bounce rate lower is better
37%
38%
41%
54%
Pages / visit
4.1
4.7
3.6
1.5
Visit duration
2m 47s
5m 06s
2m 43s
23s
Traffic sources
● Direct 96% · ● Referral 4%
● Direct 81% · ● Referral 14%
● Direct 90% · ● Referral 7%
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CoGraderSchoolAIPolarbear StudyGradingPal
0147.9K295.7K443.6K591.4KCoGrader · 66KCoGrader · 60.3KCoGrader · 48.2KCoGrader · 61.6KCoGrader · 101KCoGrader · 67.6KCoGrader · 77.3KCoGrader · 46.4KCoGrader · 39.8KCoGrader · 56.7KSchoolAI · 529.2KSchoolAI · 547.8KSchoolAI · 591.4KSchoolAI · 573.6KSchoolAI · 550.5KSchoolAI · 375.7KSchoolAI · 382.7KSchoolAI · 223.9KSchoolAI · 183.7KSchoolAI · 201.8KPolarbear Study · 44KPolarbear Study · 27.8KPolarbear Study · 53.5KPolarbear Study · 76.4KPolarbear Study · 98.5KPolarbear Study · 83.9KPolarbear Study · 137.9KPolarbear Study · 131.2KPolarbear Study · 112.9KGradingPal · 56GradingPal · 1.4KGradingPal · 2KGradingPal · 4.2KGradingPal · 4.4KGradingPal · 4.5KGradingPal · 6.5KGradingPal · 8.3K101001K10K100K1MCoGrader · 66KCoGrader · 60.3KCoGrader · 48.2KCoGrader · 61.6KCoGrader · 101KCoGrader · 67.6KCoGrader · 77.3KCoGrader · 46.4KCoGrader · 39.8KCoGrader · 56.7KSchoolAI · 529.2KSchoolAI · 547.8KSchoolAI · 591.4KSchoolAI · 573.6KSchoolAI · 550.5KSchoolAI · 375.7KSchoolAI · 382.7KSchoolAI · 223.9KSchoolAI · 183.7KSchoolAI · 201.8KPolarbear Study · 44KPolarbear Study · 27.8KPolarbear Study · 53.5KPolarbear Study · 76.4KPolarbear Study · 98.5KPolarbear Study · 83.9KPolarbear Study · 137.9KPolarbear Study · 131.2KPolarbear Study · 112.9KGradingPal · 56GradingPal · 1.4KGradingPal · 2KGradingPal · 4.2KGradingPal · 4.4KGradingPal · 4.5KGradingPal · 6.5KGradingPal · 8.3KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Freemium
Freemium
Starting price
$15per month · free tier available
$14.99per month
AUD 13per month · free tier available
$14per month · free tier available
Free tier
–
Free trial
–
–
–
API access
–
–
–
Plans
Free Free
—
Free FreeGo $13/moUltra $19.99/moPro $119/mo
Free FreeLite $14/moPro $26/moSchool & District Custom
Capabilities input → output
Input
Documents
Text
AudioDocumentsText
DocumentsImages
Output
DataText
Text
Text
DataText
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Education & LearningAI Teachers
Education & LearningAI Lesson Plan GeneratorAI Teachers
Education & LearningWriting & ContentAI Essay WriterAI Homework Helper+2 more
Education & LearningAI Teachers
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
8
8
4
6
Assessment rubrics
–
–
Essay feedback
–
–
Essay grading
–
–
Grading
–
–
Rubrics
–
–
Tutoring
–
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Exam grading
–
–
Exam preparation
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–
–
Lesson generation
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–
–
Lesson plans
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–
–
Student feedback
–
–
–
Education
–
–
–
Education assistance
–
–
–
Education support
–
–
–
Grammar checking
–
–
–
School safeguarding
–
–
–
Chrome extensions
–
–
–
Quiz generation
–
–
–
Student progress reports
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 2
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
–
–
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.