Cosmo (formerly ClassUp)

Cosmo (formerly ClassUp)

Smart AI, Real Teachers

879 ratings
166 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • August 15, 2022
  • September 14, 2026
Cosmo (formerly ClassUp) screenshot #1 for iPhone
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Cosmo (formerly ClassUp) screenshot #5 for iPhone
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Cosmo (formerly ClassUp) screenshot #7 for iPhone
Cosmo (formerly ClassUp) screenshot #8 for iPhone
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About

This app offers AI-powered, personalized learning experiences guided by real teachers. It provides live 1-on-1 classes, instant homework help, and adaptive learning plans to foster confident and motivated learners.

✓Live 1-on-1 classes with AI and human teachers
✓AI-powered personalized learning plans
✓Instant homework help and chat support
✓AI writing tool for assignments
✓Unlimited practice for Math & ELA
✓Progress tracking dashboard
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What users say

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What's New in Cosmo (formerly ClassUp)

1.55.0

September 14, 2026

Performance improvements

3

Subscriptions & In-App Purchases

$74.99

3 one-on-one classes

3 one-on-one classes

Events

Read more about Cosmo: Your AI Study Buddy

Cosmo: Your AI Study Buddy

Join Cosmo for fun, AI-powered learning!

Mar 10, 2025 — Mar 27, 2025

User reviews

Professional, kind and helpful tutors!

My child went from hating math, not confident and completed lost to loving math, wanting more math tutorials. Thank you to Cosmo and our tutor Katie!!!

1 star because zero stars isn’t an option.

This is honestly one of the worst app and customer service experiences I have ever had.

The Cosmo app is horribly designed, constantly crashes, freezes, and wastes a significant portion of the class time. And instead of fixing their app, their response is always to blame the customer’s laptop or internet connection.

Seriously?

We work from home all day with video calls running without any problem. Our internet speed is excellent, we have checked and rechecked the network, and the same issues happen repeatedly. The problem is clearly with the app. Yet rather than taking responsibility, they keep giving customers excuses.

And here is the ridiculous part: you are paying $60 for a 50-minute class. On a regular basis, we can lose around 20 minutes of that class because of technical problems. So essentially, we are paying $60 for approximately 30 minutes of actual instruction. How is that acceptable?

The quality control is terrible. Customers are pushed to purchase classes, but apparently nobody thinks it is important to make sure the platform actually works reliably before charging people.

And the customer service? Horrific. Once they have your money, getting someone to genuinely take ownership of the problem seems almost impossible. Instead of saying, “We have an issue and we will fix it,” the approach seems to be, “It must be your device or your internet.”

If you are charging premium prices, you should provide a premium, reliable service. At the very least, customers should receive the full class time they paid for.

$60 for a 50-minute class should mean 50 minutes of class—not 30 minutes because your app keeps crashing.

Extremely frustrating, extremely disappointing, and absolutely not worth the money in its current state.
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Bravo

Cosmo is the best app it’s so good and I became so bad at math to the best person in math in my school

I love God

Teaching faster, growing faster, learning even fast

Too many tech problems

The title speaks for itself

Developer apps

User experience

🐞

Reported Bugs

3 issues

Frequent class cancellations

Bug

Billing and refund issues

Bug

Unreliable internet connectivity during classes

Bug
✨

Requested Features

4 requests

More affordable pricing options

Feature

Improved scheduling and class management

Feature

Better communication with parents

Feature

Enhanced technical stability and reliability

Feature

FAQ

What does Cosmo do?

Cosmo is an AI-powered education system that combines live 1-on-1 classes with real teachers and smart AI to create personalized learning experiences. It offers features like adaptive learning plans, instant homework help, and an AI writing tool to support students.

How does the AI help with learning?

The AI in Cosmo creates personalized weekly learning roadmaps that adapt to a student's pace and progress. It also provides instant homework help, step-by-step solutions, and can even offer encouragement. Additionally, an AI writing tool assists with grammar, style, and revision tips for assignments.

Can I choose my teacher?

Yes, you have the option to pick your favorite teacher from a roster of verified educators. Alternatively, the system can match students with teachers based on their individual learning style and goals.

What subjects does Cosmo cover?

Cosmo offers unlimited practice and instant feedback for Math and ELA (English Language Arts) at all skill levels. The platform aims to make learning these subjects engaging and accessible anytime, anywhere.

How is progress tracked?

Progress is tracked through a dedicated dashboard that provides color-coded reports updated monthly. These reports highlight mastered skills and areas where a student can focus on growth, offering a clear overview of their development.