Comparison

EMM EDB vs 四合院AR

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

Head to head
About

EMM EDB

This app offers a rich collection of educational multimedia resources, including videos, animations, and picture books, designed to support learning for kindergarten, primary, and secondary students and teachers. Resources are aligned with the school curriculum and aim to enrich the learning experience and facilitate teaching activities.

Highlights
  • Theme-based short videos
  • Multi-ending micro movies
  • Animations and nursery rhymes
  • Picture books and sound tracks
  • Curriculum-aligned resources
  • Informational videos for parents and teachers
Features
Read full description

Educational Multimedia (EMM) is provided by the Education Bureau (EDB) for kindergarten, primary and secondary students as well as teachers to support learning and teaching. EMM includes theme-based short videos, multi-ending micro movies, animations, nursery rhymes, picture books, photos, sound tracks, and videos which are divided into chapters and short clips of a few minutes. These resources are developed based on the school curriculum and students’ learning needs, and are provided freely for schools to facilitate the design of learning and teaching activities and to enrich students' learning experience. Besides, informational videos are also developed for parents and teachers to introduce the latest developments in education. EMM resources are available on the Hong Kong Education City (HKEdCity) EMM website (https://emm.hkedcity.net) and this mobile application.

About

四合院AR

Features
Read full description

四合院AR讓大家隨時隨地營造一座傳統的四合院,打開不同的房子,看看居住的人物,發掘傳統建築中收藏的自然記憶。大家更可以拍照成為合院中的一員,模仿古人在匾額上寫下目標。 四合院AR是由香港賽馬會慈善信託基金捐助,設計及文化研究工作室主辦的「賽馬會『敲敲記憶』藝術科技及文化教育計劃」開發的互動應用程式,期望透過擴增實境(AR)技術讓公衆以輕鬆有趣的方式,認識傳統中國建築文化中,家庭和自然之間的共生、共處和共鳴,思考現今的生活空間。 本計劃期望將數碼技術演繹成開啟文化、歷史和想像的鑰匙,讓觀眾以有趣的方式,解開建築、園林和生活空間的文化密碼,提高大眾探索文化藝術的興趣。 * 本程式需要使用Apple的擴增實境(AR)技術運作,閣下可參考以下連結查看支援的硬件及細節: https://www.apple.com/hk/en/augmented-reality/ * 為取得更理想的應用體驗,建議規格如下: 裝置:iPhone 11或更新, iPad Pro (第4代), iPad (第9代或更新), iPad Air (第4代), iPad mini (第6代) 操作系統:iOS 15或更新 * 本程式需要透過拍攝裝置辨識AR標記或現實平面,建議在充足光線下使用。若發現程式運作異常,可能是因為無法辨別AR標記或現實平面,建議在足夠照明的環境下,嘗試不同的平面及拍攝角度,並重新啟動程式。

Screenshots

EMM EDB3 screens
四合院AR4 screens

Verdict

The call

EMM EDB and 四合院AR are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

ScorecardNo meaningful differences
EMM EDB versus 四合院AR: the parameters behind the verdict, then further details
ParameterEMM EDB四合院AR
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews27.3% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size163 MB817 MB
Age rating4+4+
Developer香港教育電視DESIGN AND CULTURAL STUDIES WORKSHOP LIMITED

In-app purchases

None

EMM EDB

No in-app purchases

None

四合院AR

No in-app purchases

Questions

Is EMM EDB free?
EMM EDB is free to download, with no in-app purchases.
Is 四合院AR free?
四合院AR is free to download, with no in-app purchases.
Do EMM EDB or 四合院AR have ads?
Neither EMM EDB nor 四合院AR shows ads.
Which is updated more often, EMM EDB or 四合院AR?
EMM EDB ships an update every 5 months, and 四合院AR every 5 months. Most recently, EMM EDB was updated on October 5, 2026 and 四合院AR on October 3, 2026.

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