Comparison

Pui Chi Communications vs RainbowSky

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

Head to head
About

Pui Chi Communications

Features
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Tseung Kwan O Pui Chi School is located at Tseung Kwan O. We provide quality education for students with moderate mental retardation. We aim at cultivating students’ integrated personality and balanced development of five way of life—moral, intellectual, physical, social and aesthetic We also focus on training children to develop their potential and self-care skills in order to promote their integration into the community. Our School hold different types of activities annually, such as Sports Day, Christmas Party and Parent-Teacher Association(PTA) Parent-Child Tour.

About

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

Pui Chi Communications2 screens
RainbowSky4 screens

Verdict

The call

The clearest difference is update cadence: RainbowSky at every 2 weeks against Pui Chi Communications's every 2 months. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Pui Chi Communications ships an update every 2 months, RainbowSky every 2 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 5 level
Pui Chi Communications versus RainbowSky: the parameters behind the verdict, then further details
ParameterPui Chi CommunicationsRainbowSky
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size41 MB292 MB
Age rating4+4+
DeveloperTseung Kwan O Pui Chi SchoolOpen Knowledge Association Ltd.

In-app purchases

None

Pui Chi Communications

No in-app purchases

None

RainbowSky

No in-app purchases

Questions

Is Pui Chi Communications free?
Pui Chi Communications is free to download, with no in-app purchases.
Is RainbowSky free?
RainbowSky is free to download, with no in-app purchases.
Do Pui Chi Communications or RainbowSky have ads?
Neither Pui Chi Communications nor RainbowSky shows ads.
Which is updated more often, Pui Chi Communications or RainbowSky?
Pui Chi Communications ships an update every 2 months, and RainbowSky every 2 weeks. Most recently, Pui Chi Communications was updated on November 1, 2026 and RainbowSky on October 31, 2026.

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