Comparison

ClassIn vs Numbertopia

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

Head to head
About

ClassIn

This integrated platform supports online and offline teaching with features like live classrooms, LMS, and personalized learning environments. It aims to empower educators and learners globally, fostering independent and self-disciplined lifelong learning.

Highlights
  • Online live classrooms
  • Offline smart classrooms
  • Learning Management System (LMS)
  • Personal Learning Environment (PLE)
  • Collaborative blackboard
  • Virtual experiments
Features
Read full description

Welcome to ClassIn and embrace the new era of lifelong learning! ClassIn, developed by Empower Education Online (EEO) for eight years, is an integrated teaching platform encompassing online live classrooms, offline smart classrooms, an LMS learning management system, and a PLE personal learning environment. ClassIn adheres to the essence of education, releasing the charm of teaching and learning, and cultivating independent and self-disciplined lifelong learners. As of now, ClassIn has been favored by educators and learners across the globe: · 150 countries · 2 million educators · 30 million learners · 20,000 K12 schools, higher education institutions, and enterprises. ClassIn effectively assists K12 schools, universities and enterprises with achieving high quality online, offline, hybrid, and intelligent teaching; ClassIn facilitates educators in creating a course system, knowledge space, learning community, and evaluation data that focus on learners; further, ClassIn enables teachers to enrich courses and teaching, and enhance students' core literacy and lifelong learning ability. Hybrid Learning Solutions ClassIn is widely praised for its comprehensive online and offline teaching solutions. It offers a seamless experience for up to 2000 people to attend online live classes, with 50 people's audio and video being displayed simultaneously. Furthermore, it provides a host of features, including collaborative blackboard, collaborative documents, group teaching and virtual experiments, to replicate the feeling of an offline environment. With its state-of-the-art intelligent teaching system, ClassIn provides an easy and efficient learning experience for both online and offline teaching. Learning Management System (LMS) ClassIn offers a comprehensive learning platform for traditional teaching activities, such as classrooms, homework, discussions, and assessments, to help students construct their own learning pathway. Moreover, with collaborative documents and internet communication, ClassIn promotes project-based, cooperative and inquiry-based learning, enabling students to practice and enhance their creativity, communication, and collaboration skills. Personal Learning Environment (PLE) ClassIn enables personalized and lifelong learning. In the era of internet and artificial intelligence, knowledge is iterating rapidly and is no longer centered in schools or libraries, but dispersed in society and networks, which requires learners to take the initiative to learn and pursue lifelong learning. ClassIn will continuously upgrade the PLE personal learning environment to build a lifelong learning system and cultivate self-disciplined lifelong learners. More to Explore on www.classin.com

About

Numbertopia

This educational game challenges players to use arithmetic operations on a set of cards to reach a target number. It features both pre-set levels and randomly generated puzzles, encouraging strategic thinking and advanced math skills.

Highlights
  • Reach target numbers with arithmetic operations
  • Level-based puzzles with unlockable stages
  • Randomly generated puzzles
  • Multiple solutions for puzzles
  • Star rewards for progress and solutions
Read full description

Numbertopia is a variation for the classic math game "24 Game". In the "24 Game", players manipulate 4 playing cards to achieve a result of 24 by using addition, subtraction, multiplication and division. In Numbertopia, players have to manipulate 4 or 5 cards to achieve a random number. It requires more complicated strategies and advanced arithmetic skills. There are 2 kinds of puzzles in Numbertopia: the Level Puzzles and the Random Puzzles. The Level Puzzles contain 100 stored puzzles. At the start, most levels are locked, and players solve the puzzle from level 1 to gain yellow stars. By gaining more yellow stars, more levels can be unlocked. The Random Puzzles are generated by computer at real time. There can be more than one solutions for each puzzle, and players will gain a red star if find any solution without viewing the answer. Enjoy your challenge!

Screenshots

ClassIn4 screens
Numbertopia4 screens

Verdict

The call

The clearest difference is review sentiment: Numbertopia at 100% against ClassIn's 51%. Numbertopia also leads on rating (5.0 vs 3.6) and in-app purchases (none vs 11). ClassIn's advantage is update cadence (every 11 days vs every 5 months) and ratings volume (1K vs 1). On price, ads, device support and iOS requirement 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. ClassIn sells 11 one-off in-app purchases. Numbertopia asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Numbertopia holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: ClassIn has 1K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 51% of ClassIn's written reviews are positive against 100% of Numbertopia's.

UpkeepUpdate frequency

ClassIn ships an update every 11 days, Numbertopia every 5 months. The most recent releases landed on September 26, 2026 and June 5, 2026 respectively.

Scorecard6 real differences · 4 level
ClassIn versus Numbertopia: the parameters behind the verdict, then further details
ParameterClassInNumbertopia
PriceFreeFree
Rating3.6 (1K ratings)5.0 (1 ratings) — better
Positive reviews50.5% of reviews100.0% of reviews — better
Number of ratings1K — better1
Update frequencyEvery 11 days — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better13.5
Further details — not scored
Size286 MB11 MB
Age rating4+4+
DeveloperEEO Education Ltd.Beijing Tabledox Technology Co., Limited

Customer experience

ClassIn

All ratings1,018 ratings
Positive64.2%
Neutral6.9%
Negative28.9%
Written reviews558 reviews
Positive50.5%
Neutral9.5%
Negative40.0%

Numbertopia

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

ClassIn

Reported bugs

4 issues
  • Frequent crashes and freezes
  • Issues with file uploads and downloads
  • Microphone and camera problems
  • Incompatibility with certain devices

Requested features

4 requests
  • Add autosave feature
  • Improve screen sharing capabilities
  • Enhance mobile app compatibility
  • Provide better language support

Numbertopia

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

ClassIn

One-time11
  • Purchase 4 additional lesson$2.99
  • Purchase 12 additional lesson$9.99
  • Purchase 14 additional lesson$11.99
Show 8 more
  • Purchase 15 additional lesson$12.99
  • Purchase 16 additional lesson$12.99
  • Pro Edition$14.99
  • Purchase 18 additional lesson$14.99
  • Purchase 17 additional lesson$14.99
  • Purchase 19 additional lesson$14.99
  • Monthly Edition$17.99
  • Purchase 20 additional lesson$17.99
None

Numbertopia

No in-app purchases

Questions

Is ClassIn free?
ClassIn is free to download, with in-app purchases available.
Is Numbertopia free?
Numbertopia is free to download, with no in-app purchases.
Which has better reviews, ClassIn or Numbertopia?
Numbertopia is rated higher. ClassIn averages 3.6 out of 5 from 1K ratings, while Numbertopia averages 5.0 from 1 ratings.
Do ClassIn or Numbertopia have ads?
Neither ClassIn nor Numbertopia shows ads.
Which is updated more often, ClassIn or Numbertopia?
ClassIn ships an update every 11 days, and Numbertopia every 5 months. Most recently, ClassIn was updated on September 26, 2026 and Numbertopia on June 5, 2026.

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