Comparison

Cosmo (formerly ClassUp) vs Cretapedia

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

Head to head
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.

About

Cretapedia

An ad-free educational app for children aged 5-12, offering engaging science lessons through interactive 3D animations and fun quizzes. It covers over 20 topics, fostering curiosity and developing critical thinking skills in a playful, story-driven environment.

Highlights
  • 20+ science topics
  • Bite-sized lessons
  • Fun quizzes
  • 3D animations
  • Interactive models
  • Develops critical thinking
  • Story-driven content
Features
Read full description

Smarter screen time! A safe, ad-free space where kids 5–12 can explore science with confidence. 1. Discover Fascinating Topics From animals to space, 20+ fascinating topics that spark curiosity Bite-sized lessons make even complex ideas easy to grasp Fun quizzes keep kids motivated and proud of progress 2. See Learning Come Alive Stunning 3D animations bring abstract concepts to life Interactive models let kids zoom, rotate, and explore in detail 3. Grow Future-Ready Skills Boost focus, memory, and observation through exploration Develop critical thinking, problem-solving, and creativity Strengthen imagination and curiosity—the foundation of lifelong learning 4. Learning that Feels Like Play Story-driven content keeps kids engaged start to finish Gamified progress makes learning fun, not forced Every session feels like an adventure, not a lecture Current Courses Available: Biology & Health: Human Body, Microorganisms Earth & Space Sciences: Rocks and Minerals, Weather and Climate, Space, Landforms Physical Sciences: Physics, Chemistry Animals & Plants: Dinosaurs, Fish, Insects, Birds, Plants, Marine Animals, Mammals, Amphibians, African Animals, Paleozoic Animals Engineering & Technology: Great Inventions, Machines History & Social Sciences: Ancient Civilizations, European Civilization, Chinese Architecture Coming Soon: Math Is Fun, Mushrooms, Forest Animals, Mars, Air and Space, Transportation, Agriculture, Toxic Creatures, Brain Science, Diseases, Reptiles, and more! READY TO EXPLORE? Spark your child’s curiosity and ignite a lifelong love of science. Download Cretapedia today and start their adventure into the wonders of the natural world! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeul

Screenshots

Cosmo (formerly ClassUp)4 screens
Cretapedia4 screens

Verdict

The call

Cosmo (formerly ClassUp) and Cretapedia both sit at 4.5 stars, but that hides the real split: 80% of Cosmo (formerly ClassUp)'s written reviews are positive against 44% of Cretapedia's. Cosmo (formerly ClassUp) also leads on update cadence (every 9 days vs monthly). Cretapedia's advantage is iOS requirement (13.0 vs 15.0). On price, rating, ratings volume and ads 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. Cosmo (formerly ClassUp) sells 3 one-off in-app purchases and Cretapedia sells 10 in-app purchases, starting at $13.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Cosmo (formerly ClassUp) against 4.6 for Cretapedia. Both are backed by a comparable volume of ratings — 879 and 1.7K respectively. Written reviews are what separate them: 80% of Cosmo (formerly ClassUp)'s written reviews are positive against 44% of Cretapedia's.

UpkeepUpdate frequency

Cosmo (formerly ClassUp) ships an update every 9 days, Cretapedia monthly. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
Cosmo (formerly ClassUp) versus Cretapedia: the parameters behind the verdict, then further details
ParameterCosmo (formerly ClassUp)Cretapedia
PriceFreeFree
Rating4.5 (879 ratings)4.6 (1.7K ratings) — better
Positive reviews80.1% of reviews — better43.7% of reviews
Number of ratings8791.7K — better
Update frequencyEvery 9 days — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size408 MB227 MB
Age rating4+4+
DeveloperAlgorithm of Learning Inc.AMAZING EDTECH PTE. LTD.

Customer experience

Cosmo (formerly ClassUp)

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

Cretapedia

All ratings1,718 ratings
Positive89.4%
Neutral4.1%
Negative6.5%
Written reviews71 reviews
Positive43.7%
Neutral7.0%
Negative49.3%

User reviews

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

Cretapedia

From 1.7K App Store ratings

What we love

  • 👍 Great learning app for kids
  • 🚀 Amazing way to learn
  • 💡 Engaging and interactive content
  • 👍 Excellent for homeschooling
  • 👍 Teaches advanced content in an easy-to-understand way

Room to improve

  • 🐛 Glitches and crashes
  • 🔒 Misleading subscription practices
  • 💡 Limited content and features
  • 💡 Not available in other languages
  • 🔒 Poor customer support

Bugs and requests

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

Cretapedia

Reported bugs

3 issues
  • Subscription issues and inability to access paid content
  • App closing during sign-up process
  • Compatibility issues with older devices

Requested features

4 requests
  • Add more dinosaur content and battles
  • Improve quiz and review features
  • Offer a more affordable subscription model
  • Provide a neutral perspective on religious topics

In-app purchases

3 purchases

Cosmo (formerly ClassUp)

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

Cretapedia

Subscriptions7
  • MONTHLY-30 DAYS FREE1 Month trial$13.991 Month
  • MONTHLY-7 DAYS FREE7 Days trial$13.991 Month
  • MONTHLY-BASIC$13.991 Month
Show 4 more
  • YEARLY-PROMOTION1 Year trial$119.991 Year
  • YEARLY-PROMOTION2 variants$119.991 Year
  • YEARLY-BASIC$119.991 Year
  • YEARLY-7 DAYS FREE7 Days trial$119.991 Year
One-time3
  • Ccoin$10.00
  • Ccoins$20.00
  • Ccoins$50.00

Questions

Is Cosmo (formerly ClassUp) free?
Cosmo (formerly ClassUp) is free to download, with in-app purchases available.
Is Cretapedia free?
Cretapedia is free to download, with in-app purchases available.
Which has better reviews, Cosmo (formerly ClassUp) or Cretapedia?
Cretapedia is rated higher. Cosmo (formerly ClassUp) averages 4.5 out of 5 from 879 ratings, while Cretapedia averages 4.6 from 1.7K ratings.
Do Cosmo (formerly ClassUp) or Cretapedia have ads?
Neither Cosmo (formerly ClassUp) nor Cretapedia shows ads.
Which is updated more often, Cosmo (formerly ClassUp) or Cretapedia?
Cosmo (formerly ClassUp) ships an update every 9 days, and Cretapedia monthly. Most recently, Cosmo (formerly ClassUp) was updated on September 24, 2026 and Cretapedia on September 21, 2026.

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