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.
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.
- 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
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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.
四合院AR
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.
| Parameter | EMM EDB | 四合院AR |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 27.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 163 MB | 817 MB |
| Age rating | 4+ | 4+ |
| Developer | 香港教育電視 | DESIGN AND CULTURAL STUDIES WORKSHOP LIMITED |
In-app purchases
EMM EDB
No in-app purchases
四合院AR
No in-app purchases








