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 Five Star Index, with an average rating of 4.1 out of 5.
Also known as
cosmoai.com
Website
cosmoai.com
Category
Education Services
Listed on Five Star Index
2026
About these reviews
Replies
The company replied to 21% of reviews.
Latest
Most recent review: October 2026.
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Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
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Post sale service is non existent.
Class schedule is messed up.
Classes are cancelled last minute without rescheduling. Once they knew you are not going to renew the package (poor management of schedule) they simply ignore you
Response from Cosmo (formerly ClassUp)Oct 10, 2026
Hi Sonia,
We're sorry to hear about your experience. We understand how frustrating scheduling issues and last-minute cancellations can be, and this is not the level of service we strive to provide.
We take your concerns about scheduling and communication seriously. Our commitment to supporting students and families remains the same regardless of whether they choose to renew their package.
We would appreciate the opportunity to review your experience and address any outstanding issues. Please contact us at [email protected] so our team can look into your concerns and work toward a resolution.
Best,
Cosmo
IL
Ian L.
The people are so good they help you to…
The people are so good they help you to do a lot of things
YE
Yenbyee
Teacher is friendly but it is not worth…
Teacher is friendly but it is not worth the amount of fees that we are paying for. We were promised refund but then its limited only for the first 30 days.
The classes after were quite a waste of time as there are not much learning to write a good composition. How do I get a refund??
Response from Cosmo (formerly ClassUp)Mar 25, 2026
Thank you for sharing your feedback. We regret to hear that your experience with our writing classes did not meet your expectations regarding value and learning outcomes.
Our non-refundable policy is designed to provide a reasonable trial period while ensuring the sustainability of our educational services. The trial window allows new students to assess whether the teaching style and curriculum align with their needs. Beyond this period, we focus on continuous support and adjustments to help each student progress.
We take your concern about the composition instruction seriously. Our curriculum is structured to build writing skills progressively, and we regret if this was not clearly communicated or experienced. We would be glad to review your child’s progress and discuss specific areas where we can provide additional guidance or materials.
If you would like to explore a resolution, please contact our support team directly at [email protected]
NA
Nabanita
Education agent just keeps calling
We saw an add on FB and thought of trying out a trial class and get to know about the payment structure for our kid. However upon review we found the fees were too high for us to afford and we did let them know. We again received a call after around 3 weeks and and the agent who herself was having an accent just kept pushing for their class and telling how other online classes are not as helpful. I believe they need to respect our decision and leave us alone once we have respectfully given our decision. I am writing this review because I am really frustrated with the call.
Response from Cosmo (formerly ClassUp)Jul 16, 2025
Dear Nabanita,
Thank you for taking the time to share your feedback with us. We sincerely apologize for the frustration caused by the follow-up call. It was never our intention to make you feel pressured or disrespected—we truly appreciate your initial interest in our classes and your honesty about the financial considerations.
Our goal is to provide helpful information and support to parents exploring educational options for their children. However, we apologize in this instance for not respecting your decision after you kindly declined. We’ve shared your feedback with our team to ensure better communication practices, including more sensitivity to parents’ preferences and boundaries.
If you’d ever reconsider in the future, we’d be happy to assist in a way that aligns with your needs—no pressure whatsoever. Thank you again for holding us accountable, and we wish you and your child all the best in finding the right learning path.
KG
KG
Deeply Disappointed with Your Tutoring Service
I am writing to express my deep dissatisfaction with your platform. Having used several online and in-person tutoring services over the years, I can say with confidence that this has been the most disappointing experience to date.
Your sales process was incredibly aggressive—pushing us to sign up quickly with promises of results, personalized attention, and an advanced AI-powered experience. Unfortunately, what has followed has been anything but.
The platform itself is poorly designed and unintuitive. The quality of instruction has been subpar, and there seems to be little thought given to actual educational outcomes. Your use of AI feels more like a marketing gimmick than a helpful tool—it lacks the intelligence, adaptability, and relevance needed to support meaningful learning.
Worse still, your system for matching students with the right instructors has been chaotic. Despite claims of limited availability, nearly every time slot appears open—yet we’re told to rush to book. There is also a significant language and communication barrier that has made it nearly impossible to get clarity or support.
Overall, the service lacks direction, consistency, and credibility. It feels like a company with an identity crisis, caught between selling a tech solution and actually delivering a quality educational experience.
I regret signing up and would not recommend your service to others. At this point, I would have had a far better outcome using self-guided workbooks or teaching my child myself.
I hope you take this feedback seriously and make the necessary improvements—for the sake of other families who may not yet realize what they’re signing up for.
Response from Cosmo (formerly ClassUp)Jun 12, 2025
Dear Valued Customer,
Thank you so much for taking the time to share your detailed feedback with us. We truly appreciate your candor, and we are sorry to hear that your experience did not meet either your expectations or our standards.
First and foremost, please accept our heartfelt apologies for any distress caused by various aspects of our services. At Cosmo, we are committed to continuously improving the quality of our trial class experiences, teaching effectiveness, matching mechanisms, and many other facets of both our pre-sale and post-sale services.
Your comments have been enlightening for us. We would love to engage in a more in-depth conversation with you about this matter. Please feel free to reach out via email at [email protected] or call our Customer Service at 888-818-8240. Our department manager will be available to discuss your entire experience with you and provide tailored solutions that best suit your needs. We are also very grateful for the opportunity you've given us to realign ourselves with what families truly need.
We look forward to hearing from you soon!
MR
Magda R.
When I paid nearly $3,000 for a…
When I paid nearly $3,000 for a one-year package that included approximately 84 classes supposedly taught by tutors with experience certificates from top universities, I expected quality support for my 14-year-old daughter, who is taking honors algebra. However, the tutor, who appeared to be around the same age as my daughter, was unable to help her solve the problems. This was a troubling sign.
Many classes were missed, and when I asked for a refund, I was told I couldn't be reimbursed. Instead, they offered me additional classes as a solution. If the tutors are ineffective, why would I want more classes?
I strongly advise against spending your money on this program; it feels like a scam.
Response from Cosmo (formerly ClassUp)Feb 6, 2025
Dear parent,
Thank you for sharing your experience with us. We sincerely apologize for the disappointment and frustration you and your daughter have encountered. It is deeply concerning to hear that the service provided did not meet your expectations, especially given the significant investment you made.
ClassUp has always taken feedback like yours very seriously and we are committed to addressing the issues you’ve raised. The quality of our teachers and the effectiveness of our classes are of utmost importance to us, and it is truly alarming to hear that your daughter did not receive the support she needed. We will be conducting a thorough review of the tutor’s qualifications and the overall program to ensure that such issues do not occur in the future.
Please allow us the opportunity to make this right by contacting our team directly at [email protected], and we will do our best to address your concerns promptly.
We value your feedback as it helps us improve our services. Thank you for bringing this to our attention, and we hope to have the chance to restore your trust in our program.
MA
mak
Scammers
Scammers! I signed my son for 12 classes, got just 9.
Response from Cosmo (formerly ClassUp)Dec 27, 2024
Dear Parent, we sincerely apologize for your experience. Please rest assured that ClassUp will not remove any of your classes. We may have unintentionally given you the wrong impression regarding the 9 'credits' in your account, which is equivalent to 12 classes for K-5 students. We are eager to assist you as soon as possible with all of your questions and concerns. Could you please send us a message at [email protected] so that we can promptly follow up on your account? Thank you very much, and happy holidays!
AN
ANP
Ripping Off
They are very expensive. Over $50 for an ELA class per session this is too much. I have done online sessions with other providers for less than half a price of what Classup is charging. I hope they stop ripping people.
Response from Cosmo (formerly ClassUp)Oct 31, 2024
Dear Customer,
Thank you for your feedback. We fully recognize the significance of financial considerations in relation to children's education. However, we kindly ask you to appreciate that the value of our classes and services encompasses multiple dimensions beyond pricing. ClassUp's mission is to make premium education accessible to all students across the United States; therefore, we have made substantial investments in curriculum quality, teaching staff, service support, and various other aspects. We would greatly appreciate hearing your suggestions regarding our classes and hope to connect with you soon! Thank you very much.
