iClass One vs RainbowSky
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iClass One
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留意,目前學生透過本應用程式(新版本平台)提交的活動答案不會同步到舊版平台,老師亦未能在舊版平台上查閱學生在新版平台上提交之答案。因此,在使用此應用程式前,請先徵詢老師意見。 All responses submitted through the new platform are not synchronized with the old platform, iClass LMS. Please seek advice from teachers before using the new platform. 在 2023 年推出的 iClass One 平台功能包括互動課堂(LMS)、電子教科書,等等。 iClass 課堂(LMS) 讓老師網上建立課堂活動和評估,讓學生在網上提交答案,促進課堂互動和參與。例子包括繪圖、錄音、測驗。老師可以輕易批改功課、查閱成績和報告,有效地評估學生的學習進度。 iClass 教科書 將電子教科書融合到課堂,讓學生在互動學習環境下學習。電子教科書提供精選的課堂活動,推動學生積極參與課堂。 注意 目前學生透過新版平台(iClass One)提交的活動答案不會同步到舊版平台,老師亦未能在舊版平台上查閱學生在新版平台上提交之答案。因此,在使用此應用程式前,請先徵詢老師意見。 First offered in 2023, iClass One provides access to iClass Lesson (LMS), iClass Textbook, etc. iClass Lesson (LMS) Facilitating interaction and participation in class, iClass Lesson allows teachers to conduct class activities and assessments online. Examples include Drawing, Voice/Video Recording, and Quiz. Tools for marking assignments and performance reports are available, helping teachers to evaluate student progress effectively. iClass TextBook Integrating with iClass Lesson, iClass ETextbook creates an interactive learning environment for students. Students are motivated to be engaged in a lesson by participating in our selected class activities. Note: All responses submitted through the new platform, iClass One, are not synchronized with the old platform, iClass LMS. Please seek advice from teachers before using the new platform.
RainbowSky
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Your e-books, your pedagogy. Cater your student's need. RainbowOne lets you create your own e-Learning materials and hold a truly interactive and engaging e-lesson. E-books can be easily created and adjusted freely to suit your needs. Our interactive e-lesson equipped with functions which helps you to save time. Exercises can be auto-corrected, and the learning data are analyzed to let you know more about your students’ ability. And the most important is, it is fun! Innovative e-Book Editor: Total Design Freedom We offer 80+ comprehensive tool and 10000+ images for you to tailor-make your e-books. You can start with a free canvas or choose from our templates. With easy drag and drop you can customize anything. Cross-platform lesson: Interact with your students Lesson can be held in a cross-platform environment. You can group your students and hold a competition, voting or discussion. We also provide page-sync, black-out screen and other functions that helps you manage your class. Instant Charts: Know your students well All questions with pre-set answers are instantly corrected. Learning data are automatically collected and analyzed. You can easily find out the learning difficulties of your students. Bookstore with editable e-books Share your knowledge! Here we have a bookstore for you to share your materials in public, and you can read the e-books from the bookstore to get some inspiration, or even download and edit it to suit your needs.
Screenshots
Verdict
The clearest difference is update cadence: iClass One at weekly against RainbowSky's every 2 weeks. RainbowSky's advantage is iOS requirement (12.0 vs 17.5). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
iClass One ships an update weekly, RainbowSky every 2 weeks. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.
| Parameter | iClass One | RainbowSky |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.5 | 12.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 292 MB |
| Age rating | 4+ | 4+ |
| Developer | IT Wake | Open Knowledge Association Ltd. |
In-app purchases
iClass One
No in-app purchases
RainbowSky
No in-app purchases








