Cosmo (formerly ClassUp) User Reviews

Cosmo (formerly ClassUp)
Cosmo (formerly ClassUp)
Algorithm of Learning Inc.

Customer Experience

Positive experience80.1% of reviews
Neutral2.6% of reviews
Negative experience17.3% of reviews

~ Based on 156 written reviews from the US App Store.

What users say

Is Cosmo (formerly ClassUp) Safe?

Cosmo (formerly ClassUp) appears safe based on user ratings. AppsHunter Safety Score for Cosmo (formerly ClassUp) is 90/100.

This assessment is based on 858 user ratings, with an App Store average of 4.5/5.

Safety Analysis

86.1% of ratings point to a safe experience
1.9% of ratings suggest some concerns
12.0% of ratings point to a risky experience

~ Based on 858 App Store ratings for Cosmo (formerly ClassUp).

Is Cosmo (formerly ClassUp) Legit?

Cosmo (formerly ClassUp) appears to be a legitimate app. AppsHunter Legitimacy Score for Cosmo (formerly ClassUp) is 90/100.

Based on 90 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

Cosmo has no italics and bold letters

4.5

Amazing app

Cosmo is such a great app for me to learn. The teachers are also extra kind! I really recommend this app to other families.

Very disappointing experience with Cosmo/ClassUp.

My concerns are not based on one isolated incident, but on repeated problems with their communication, scheduling, and customer service.

Their “progress report” calls often seem to turn into sales calls for additional classes rather than genuine discussions about my child’s progress. Communication with their “Learning Partners” has also been difficult, and the Learning Partners change so frequently that the new person often seems unaware of previous arrangements or account history.

Most recently, our program was set up for ONE CLASS PER WEEK, but Cosmo scheduled two classes in the same week. When I asked them to cancel the extra class that they had scheduled, I was told I would lose the credit because it was within 24 hours—and that I would have to pay an additional $10 if I wanted to use that class later.

A cancellation policy should apply when a customer makes a late cancellation, not when the company makes a scheduling error and the customer asks them to correct it. I find it completely unreasonable to charge the customer for the company’s own mistake.

After dealing with multiple issues like this, I would strongly recommend that parents carefully monitor their schedules, class credits, and charges and keep records of all communication.
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Not much chance to meet the teacher I needed

Bad experience

It’s fun but you’re learning

Cosmo doesn’t feel like learning it feels like a game you have daily missions and it’s makes learning much more fun

My kids, love, ClassUp and the teacher, Mr. Brian

He is wonderful teacher I wouldn’t ask for anyone else the way he teaches my kids. It’s another level. They look forward to the class communicating with him learning from him. This is the best decision we ever made for the kids specially, on the summertime. I’m very grateful to Mr. Brian and signing up with ClassUp I would recommend it to any mothers for out. There is amazing program for the kids to learn reading and writing.
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Nathan

The best app ever

This is such a fun class app my kid is aldready learning so fast

Thanks for the app

100

Good

Cosmo is for sure the BEST

You can learn many things in Cosmo from Reading to Writing and Math all of these helps students who need help catch up to their grade level or even go past their grade level. I would DEFFINETLY recommend Cosmo.

Great!

Imma student who uses this app and it’s like greatttt like it improved my writing a lot. I can now write usin details and description they give you exercises which r soooo helpful tho and i can use words to explain more soooo yaaaa slay u need to get this app

Dumb

Teacher spelled so many words incorrectly, didn’t understand what the question was asking, and was dumb.

slop

it uses ai slop to change your writes into videos without premisson!

amazing

Fabulous, fabulous fabulous fabulous and more fabulous so so so so so so so so so so so so so so so so so so so so so so so so so so so so so so so so so so fabulous

Cosmo is awsome I get to learn very well

It is a great app that helps with writing reading science and math. And no it is not the app doing it’s real teachers. Enjoy

Cosmo

The practice really helped me a lot! Thank you so much

Writing Class

We signed up my daughter for writing class with Mr. Sang. Mr. Sang established a great rapport with her and does a wonderful job keeping my daughter engaged with his upbeat personality and expertise in his craft. He keeps all lessons challenging, organized and fun! He quickly built a relationship with my daughter and allowed her to be herself by keeping humor in all lessons. She seems to be laughing and learning in class, which we absolutely love. Mr. Sang has a way with making corrections and redirecting her by keeping things light and using humor. Through this class we realized she really takes this kind of feedback well, as opposed to dad and mom’s feedback. Thank you for challenging her and making learning so fun and engaging.
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AMAZING!

OMG Cosmo is amazing. It has everything u need! And it’s rlly cute 2. The teachers are amazing and I love Ms. Kendra, she is da best! Cosmo has nothing to improve! It’s perfect!

The best learning app!!!😁

I think this app is great all the teachers are so kind and funny. They help me learn so much things I didn’t learn in class. Now I feel like I know what I’m doing tin class and not behind in what I’m doing. I feel like my writing is becoming better and better each day!

Great investment! Get it you won’t regret it!

Cosmo AI has been an amazing academic resource for my child. The platform offers structured learning plans, engaging practice activities, and reliable homework support with experienced teachers who are both professional and incredibly patient. They truly take their time to make sure students understand the material.

My son is advanced for his age, and I joined Cosmo AI to give him that extra challenge and it has exceeded my expectations. I especially appreciate the educational games and goal-setting features that keep him motivated and excited to learn.

The one-on-one sessions with teachers feel very personal, and the platform itself is easy to navigate and thoughtfully designed. It creates a comfortable and supportive learning environment for kids.

I was not paid for this review, this is entirely based on my personal experience, and I genuinely believe Cosmo AI is a great investment in a child’s education.
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