Comparison

Outschool vs Cosmo (formerly ClassUp)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Outschool

Discover and enroll your child in a vast selection of live online classes taught by global educators. This app provides a convenient way for kids and teens to learn on the go, offering features like class reminders and direct communication with teachers.

Highlights
  • Over 140K live online classes
  • Taught by global teachers
  • Reminder notifications for classes
  • Direct communication with teachers
  • Zoom integration for learners
  • Classes for ages 3-18
Read full description

Outschool empowers your child by offering over 140K classes taught by teachers around the world. Kids are free to choose what, how, and where they want to learn. Now it’s even easier to learn on the go with the Outschool App. * Never miss a class with reminder notifications * Communicate with teachers before and after class * Help your learners access Zoom on their own * Designed for kids and teens, giving you peace of mind For everything else, visit the website to get full access to your account, and stay tuned for more features in the app coming soon! About Outschool Outschool is an online learning platform that empowers kids ages 3–18 to learn on their own terms with the widest variety of teachers, topics and classes to suit any interest. We offer interactive, small-group classes that are fun and social, video classes that can be taken any time, and groups that connect learners around their favorite topics. With Outschool, learners are free to pursue their interests, connect with others around shared passions, and build confidence through progress. Since 2015, we’ve partnered with vetted, diverse, expert teachers to give kids everywhere greater access to high-quality education. Questions? Have other features you'd love to see? Let us know at appsupport@outschool.com or visit www.support.outschool.com See our privacy policy at: https://outschool.com/privacy See our terms of service: https://outschool.com/terms

About

Cosmo (formerly ClassUp)

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.

Highlights
  • 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
Read full description

Becoming a confident thinker. A curious problem-solver. A joyful, motivated learner who’s ready for whatever the future holds. We’re a future-ready education system—powered by AI, guided by real teachers, and built for how children actually grow. 1. Live 1-on-1 Classes: Human Teachers + Smart AI In every session, real teachers and AI collaborate to create dynamic lessons that drive progress. Our virtual classrooms include interactive tools (whiteboards, quizzes!) to boost engagement. 2. Pick Your Favorite Teacher (or Let Us Choose!) Our experts match students with teachers based on learning style and goals—or you can directly select your preferred instructor from our verified educators. 3. Flex Scheduling: Learn Anytime, Anywhere Book classes 24/7 from your couch, library, or even soccer practice. Reschedule freely with xx-hour notice. 4. Cosmo: The AI Study Buddy Who Gets It 4.1 AI-Powered Personalized Learning Plans Customized weekly roadmaps adapting to your child’s pace and progress. 4.2 Instant Homework Help & Chat "Hey Cosmo, explain algebra!" Get step-by-step solutions, class bookings, or a pep talk with meme reactions. 4.3 AI Writing Tool Snap a photo of writing assignments for: Grammar fixes, Style suggestions, "Aha!" revision tips 4.4 Unlimited Practice for Math & ELA Enjoy endless questions and instant feedback—perfect for all skill levels. Learn anytime, anywhere! 4.5 Progress Tracking Dashboard Track mastered skills and growth areas with color-coded reports updated monthly.

Screenshots

Outschool4 screens
Cosmo (formerly ClassUp)4 screens

Verdict

The call

The clearest difference is review sentiment: Cosmo (formerly ClassUp) at 80% against Outschool's 32%. Cosmo (formerly ClassUp) also leads on rating (4.5 vs 3.3) and ads (none vs shown). On price, in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Outschool sells 1 one-off in-app purchase and Cosmo (formerly ClassUp) sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cosmo (formerly ClassUp) holds the better App Store score, 4.5 against 3.3. That said, the two scores are not equally well evidenced: Cosmo (formerly ClassUp) has 879 ratings behind it against 107, so its average is the more settled of the two. Written reviews point the same way: 32% of Outschool's written reviews are positive against 80% of Cosmo (formerly ClassUp)'s.

UpkeepUpdate frequency

Outschool ships an update every 3 weeks, Cosmo (formerly ClassUp) every 9 days. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

Scorecard5 real differences · 5 level
Outschool versus Cosmo (formerly ClassUp): the parameters behind the verdict, then further details
ParameterOutschoolCosmo (formerly ClassUp)
PriceFreeFree
Rating3.3 (107 ratings)4.5 (879 ratings) — better
Positive reviews32.4% of reviews80.1% of reviews — better
Number of ratings107879 — better
Update frequencyEvery 3 weeksEvery 9 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size54 MB408 MB
Age rating4+4+
DeveloperOutschool, Inc.Algorithm of Learning Inc.

Customer experience

Outschool

All ratings92 ratings
Positive57.6%
Neutral2.2%
Negative40.2%
Written reviews74 reviews
Positive32.4%
Neutral9.5%
Negative58.1%

Cosmo (formerly ClassUp)

All ratings879 ratings
Positive86.1%
Neutral1.8%
Negative12.1%
Written reviews156 reviews
Positive80.1%
Neutral2.6%
Negative17.3%

User reviews

Outschool

From 107 App Store ratings

What we love

  • 👨‍🏫 Quality teachers and educational content
  • 🎓 Diverse class offerings and subjects
  • 📱 Convenient access to classes on mobile devices
  • 🔔 Helpful notification system for class reminders
  • 👥 Safe, vetted online learning environment

Room to improve

  • 💰 Expensive membership model and pricing structure
  • 💳 Predatory credit/coin system with markups
  • 🚫 Forced membership requirement (removed drop-in flexibility)
  • 🐛 App frequently crashes and fails to load
  • 🔍 Poor search and filtering functionality

Cosmo (formerly ClassUp)

From 879 App Store ratings

What we love

  • 👍 Awesome teachers
  • 🚀 Personalized learning
  • 💡 Engaging and fun lessons
  • 🚀 Flexible scheduling
  • 👍 Knowledgeable and professional tutors

Room to improve

  • 🐛 Scheduling issues and class cancellations
  • 💰 Expensive pricing
  • 🤯 Poor customer service and communication
  • 🐛 Technical issues with app and connectivity

Bugs and requests

Outschool

Reported bugs

12 issues
  • App crashes and force quits frequently
  • Continuous loading symbols without data retrieval
  • Login failures on both app and website
  • App doesn't load class data properly
  • Join button doesn't connect to correct Zoom class
Show 7 more
  • Students stuck waiting for host to let them in
  • App incompatible with iPhone 16 Pro Max iOS 18
  • Classes not displaying in app
  • Network failure errors despite good connection
  • Child profile switching logs out user
  • Incorrect class shown when joining
  • Schedule not displaying correctly on app

Requested features

12 requests
  • Calendar view showing all scheduled classes
  • Search and filter functionality in app
  • Ability to save/favorite classes for later
  • Click-through to teacher profiles
  • Ability to message teachers from app
Show 7 more
  • Teacher notifications in app
  • Groups feature in app
  • Ability to switch between child profiles without logging out
  • Class linking and cross-referencing
  • Android app version
  • Teacher app version for educators
  • Late enrollment option for missed class signups

Cosmo (formerly ClassUp)

Reported bugs

3 issues
  • Frequent class cancellations
  • Billing and refund issues
  • Unreliable internet connectivity during classes

Requested features

4 requests
  • More affordable pricing options
  • Improved scheduling and class management
  • Better communication with parents
  • Enhanced technical stability and reliability

In-app purchases

1 purchases

Outschool

One-time1
  • $10 in Outschool balance$14.99
3 purchases

Cosmo (formerly ClassUp)

One-time3
  • First Class$0.99
  • Test 20 lessons package$0.99
  • 3 one-on-one classes$74.99

Questions

Is Outschool free?
Outschool is free to download, with in-app purchases available.
Is Cosmo (formerly ClassUp) free?
Cosmo (formerly ClassUp) is free to download, with in-app purchases available.
Which has better reviews, Outschool or Cosmo (formerly ClassUp)?
Cosmo (formerly ClassUp) is rated higher. Outschool averages 3.3 out of 5 from 107 ratings, while Cosmo (formerly ClassUp) averages 4.5 from 879 ratings.
Do Outschool or Cosmo (formerly ClassUp) have ads?
Outschool shows ads; Cosmo (formerly ClassUp) does not.
Which is updated more often, Outschool or Cosmo (formerly ClassUp)?
Outschool ships an update every 3 weeks, and Cosmo (formerly ClassUp) every 9 days. Most recently, Outschool was updated on September 20, 2026 and Cosmo (formerly ClassUp) on September 24, 2026.

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