MERS.HK vs Catholic DSI
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
MERS.HK
This app provides students and teachers with an optimized experience for accessing and interacting with e-learning resources. Users can annotate screenshots, seamlessly connect with other educational tools, and enjoy a locked rotation for comfortable viewing.
- Optimized viewing and access to e-learning resources
- Screenshot annotation and sharing
- Seamless integration with other MERS apps
- Automatic rotation lock for comfortable use
- Designed for MERS e-Learning in Schools partners
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MERS.HK MERS.HK is aiming to give students and teachers the best possible user experience designed for optimal use of the e-learning resources developed by Modern Educational Research Society, Ltd (MERS). Features: β§ Provides students and teachers with the best viewing and accessing results when they use MERS resources. β§ Allows users to take a screenshot on which they can make notes, draw or write remarks. Screenshots can be uploaded to Camera Roll or Share to other Apps. β§ e-Learning activities are seamlessly connected to other apps developed by MERS for effective learning. β§ Rotation is automatically locked, in line with the content and interface design of the materials for best viewing. * Only available for e-Learning in Schools partners of MERS.
Catholic DSI
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The Official App of the Catholic Education Office, the Catholic Diocese of Hong Kong, aims to provide information, news, event enrolment and surveys to kindergartens, government-aided primary schools and government-aided secondary schools sponsored by the Catholic Diocese of Hong Kong. 倩主ζι¦ζΈ―ζεζθ²δΊεθηζζ©ζη¨η¨εΌγδΈ»θ¦εζε屬δΈζΏεΊζ΄₯θ²ΌδΈεΈγε°εΈεεΉΌη¨εζδΎθ³θ¨γεΈζ ‘ζΆζ―γζ΄»εε ±εεεε·θͺΏζ₯γ
Screenshots
Verdict
The clearest difference is device support: Catholic DSI at 3 against MERS.HK's 1. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MERS.HK ships an update every 5 months, Catholic DSI every 8 months. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.
| Parameter | MERS.HK | Catholic DSI |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | β |
| Update frequency | Every 5 months β better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPad | iPhone, iPad, iPod β better |
| Requires iOS | 10.0 β better | 11.0 |
| Further details β not scored | ||
| Size | 2 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Modern Educational Research Society, LTD | eClass Limited |
In-app purchases
MERS.HK
No in-app purchases
Catholic DSI
No in-app purchases
Questions
Is MERS.HK free?
Is Catholic DSI free?
Do MERS.HK or Catholic DSI have ads?
Which is updated more often, MERS.HK or Catholic DSI?
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