Love the whiteboard
My daughter really loves the whiteboard feature. She can show how to solve a math problem to her tutor.
By Evan P.
Sunday, November 8, 2026 · Customer reviews of US businesses
The Fair Hearing score
Great
134 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Cosmo provides AI-powered personalized learning for K-12 students. 1:1 Live Online Classes That Click. Real teachers + smart AI, always on your schedule.
Cosmo (formerly ClassUp) (cosmoai.com) has 134 customer reviews on The Fair Hearing, with an average rating of 4.1 out of 5.
134 approved reviews, newest moderated first
My daughter really loves the whiteboard feature. She can show how to solve a math problem to her tutor.
By Evan P.
Very professional tutor. Our daughter loves math now! Her tutor has been teaching math for 10 years.
By Walker
My 8-year-old absolutely loves learning math with David! She has been making great progress. David is a fantastic teacher, he's patient, but seems not good at encouraging students.
By Bulouch T.
My soon gets A's in his math! It's really helpful.
By Loreshi T.
We have three children in our family and the support team told us that they can share the same package. This is great.
By Sam W.
We were looking for a private tutor for our daughter to help her with math over the summer. The trial class is a perfect match for our needs.
By Camden B.
My daughter absolutely loves this program! It's so great to see her enjoying it. Looking forward to ongoing sessions.
By Gimpkilblur N.
Adriana is amazing! She's so good at connecting with my 10-year-old in our online classes. She really helped him out a lot during summer break.
By Bobby F.