Comparison

ClassIn vs PolyU Library

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

PolyU Library

Features
Read full description

PolyU Library Mobile App gives you a whole new experience in using library services and facilities: - Search and locate book collections and facilities with Augmented Reality (AR) indoor navigation - Find the availability of computers, group rooms, studios, seats, and study space in real time - Make reservation for library facilities, manage iBooking records and onsite check in/out the reserved rooms - View personal records of requested items and loans, and receive alert messages for borrowing and returning records, due date reminders and pick-up notices for requested items - Check-out books via NFC - Make advanced reservation for borrowing notebook computer - Listen to the audio guide of students sharing sessions and learning experiences when visiting the Outstanding Work by Students Showcase in the Library

Screenshots

ClassIn4 screens
PolyU Library4 screens

Verdict

The call

The clearest difference is in-app purchases: PolyU Library at none against ClassIn's 13. ClassIn's advantage is update cadence (every 11 days vs every 3 months) and iOS requirement (13.0 vs 15.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ClassIn sells 13 one-off in-app purchases. PolyU Library asks for nothing beyond the download.

UpkeepUpdate frequency

ClassIn ships an update every 11 days, PolyU Library every 3 months. The most recent releases landed on October 10, 2026 and September 28, 2026 respectively.

Scorecard3 real differences · 7 level
ClassIn versus PolyU Library: the parameters behind the verdict, then further details
ParameterClassInPolyU Library
PriceFreeFree
Rating3.6 (1K ratings) — better—
Positive reviews50.5% of reviews—
Number of ratings1K — better—
Update frequencyEvery 11 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size286 MB35 MB
Age rating4+17+
DeveloperEEO Education Ltd.The Hong Kong Polytechnic University

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

PolyU Library

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

ClassIn

One-time13
  • Purchase 1 additional lesson$0.99
  • Purchase 2 additional lesson$1.99
  • Purchase 4 additional lesson$2.99
Show 10 more
  • Purchase 12 additional lesson$9.99
  • Purchase 14 additional lesson$11.99
  • 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

PolyU Library

No in-app purchases

Questions

Is ClassIn free?
ClassIn is free to download, with in-app purchases available.
Is PolyU Library free?
PolyU Library is free to download, with no in-app purchases.
Do ClassIn or PolyU Library have ads?
Neither ClassIn nor PolyU Library shows ads.
Which is updated more often, ClassIn or PolyU Library?
ClassIn ships an update every 11 days, and PolyU Library every 3 months. Most recently, ClassIn was updated on October 10, 2026 and PolyU Library on September 28, 2026.

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