Chitti One vs Cosmo (formerly ClassUp)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chitti One
This educational app offers engaging video lessons for K-12 students, explained in regional languages with animation and real-life stories. It covers subjects like math, science, physics, chemistry, and biology, making complex concepts easy to grasp and apply.
- Animated video lessons
- Regional language explanations
- Real-life story explanations
- Practice quizzes
- Skill points for evaluation
- Subject-specific chapters
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Engaging lessons, in your regional language, beyond the syllabus and fun-filled learning. Chitti Classes - Best learning app for K-12 students! The app is designed for students from class 1-10 combining animation, Drama, real life story explanation as video lessons. This makes students understand hard concepts and make them apply things in real life. The app covers maths, physics, Chemistry and biology for class 6-10 and maths, science and boo for class 1-5. The concepts are researched by field experts and they are blended into a simplified way for understanding. Each topic is visualised in a 2D animation and explained clearly by our tutors. The aim of Chitti classes is to make students understand what they are studying in their academic life. Features: Discover each subject and it will be provided with respective chapters along with the lessons. Practice quizzes after each topic and earn your skill points to evaluate your understanding. Watch featured videos on time every week What’s New? Chitti Classes includes: Access to all classes including junior and senior. New User Interface with added features. Monthly subscription
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.
- 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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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
Verdict
The clearest difference is in-app purchases: Chitti One at none against Cosmo (formerly ClassUp)'s 3. Cosmo (formerly ClassUp)'s advantage is ratings volume (879 vs 45) and update cadence (every 9 days vs every 4 weeks). On price, rating, ads 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
Both are free to download. Cosmo (formerly ClassUp) sells 3 one-off in-app purchases. Chitti One asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.5 for Chitti One against 4.5 for Cosmo (formerly ClassUp). That said, the two scores are not equally well evidenced: Cosmo (formerly ClassUp) has 879 ratings behind it against 45, so its average is the more settled of the two. Written reviews are what separate them: 65% of Chitti One's written reviews are positive against 80% of Cosmo (formerly ClassUp)'s.
Chitti One ships an update every 4 weeks, Cosmo (formerly ClassUp) every 9 days. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.
| Parameter | Chitti One | Cosmo (formerly ClassUp) |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (45 ratings) — better | 4.5 (879 ratings) |
| Positive reviews | 64.9% of reviews | 79.8% of reviews — better |
| Number of ratings | 45 | 879 — better |
| Update frequency | Every 4 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Subscription | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 59 MB | 408 MB |
| Age rating | 4+ | 4+ |
| Developer | LMES Academy Private Limited | Algorithm of Learning Inc. |
Customer experience
Chitti One
Cosmo (formerly ClassUp)
User reviews
Chitti One
From 45 App Store ratingsWhat we love
- 👍 Easy to understand teaching
- 🤩 Great initiative for learning
- 💰 Worth the money
- 🚀 Excellent app creation
- 💡 Innovative teaching methods
Room to improve
- 💸 Waste of money
- 📉 Expensive subscription
- 🚫 No response from support
- 🤷♀️ Content not accessible
- ❌ App not working after subscription
Cosmo (formerly ClassUp)
From 879 App Store ratingsWhat 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
Chitti One
Reported bugs
44 issues- Unable to login using Gmail on iPhone
- App not opening after subscription
- No response from phone numbers for login credentials
- No way to access recorded videos
- Aspect ratio not fitting well on new iPhone models
Show 39 moreShow fewer
- Screen tilt issue on iPhone
- Less videos available
- Unable to update City (Singapore null)
- Bug in city selection during registration
- OTP issues, unable to register
- Screen cannot move to the next screen when entering OTP
- White text on white background in city selection
- About tab not scrolling down
- Selecting city page keeps loading
- Unable to register, city comes back to student name
- Cannot choose City and state in iPhone
- Unable to enter city name, search result closes
- Issue with registration, unable to select city name
- Not able to register using USA mobile number
- Issue when selecting city
- Unable to select the city
- Issue while selecting City
- City is not showing up during registration on iPhone 8 Plus
- Location cannot be loaded during registration
- Cannot select city in iOS
- Cannot able to select the state, search screen disappears
- Problem in selecting city, opens a browser and closes
- Cannot select city while signup via iOS app, popup closed
- Registration failed, city not showing
- Bug in selecting city, opens a browser and closes
- App hangs during registration in Australia
- Unable to select City and State while creating account on iOS
- Registration doesn’t work in US
- OTP not working
- Not got OTP to US mobile number and email
- Unable to Register in iPhone, unable to choose city and state
- OTP is not working
- Not working in USA
- Not able to register itself
- Screen resolution not proper for iPad
- Not supported for screen rotation (landscape) view on iPad
- Unable to register, mobile not found or invalid otp error
- OTP don’t work for US numbers
- Registration process bug, drill down option under city field does not provide option to select
Requested features
13 requests- Support for 11th standard students
- Aspect ratio fix for new iPhones
- Screen tilt fix for iPhones
- Cast option to TV
- iPad support
Show 8 moreShow fewer
- Monthly subscription option
- More content
- Free subscription option
- Dark mode for iOS 13
- Add Tamil language option for app interface
- Enable for USA mobile numbers and email
- Enable for USA region
- NCERT syllabus based videos
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
Chitti One
No in-app purchases
Cosmo (formerly ClassUp)
- First Class$0.99
- Test 20 lessons package$0.99
- 3 one-on-one classes$74.99
Questions
Is Chitti One free?
Is Cosmo (formerly ClassUp) free?
Which has better reviews, Chitti One or Cosmo (formerly ClassUp)?
Do Chitti One or Cosmo (formerly ClassUp) have ads?
Which is updated more often, Chitti One or Cosmo (formerly ClassUp)?
Other comparisons
