eTAX by IRD vs Mark2Do
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eTAX by IRD
Manage your tax affairs conveniently and securely from your mobile device. Access important tax messages, personal information, and a direct link to the IRD's online tax portal for services like e-filing and document stamping.
- Secure login with iAM Smart and biometrics
- View real-time tax messages and alerts
- Access Individual Tax Portal
- E-filing of tax returns
- E-Stamping of documents
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eTAX is a mobile application launched by the Inland Revenue Department (IRD), the Government of the Hong Kong Special Administrative Region of the People's Republic of China. It provides a secure and convenient platform for individuals to manage their tax matters anytime, anywhere with ease. Key features include: • Secure Login: Supports login via the “iAM Smart” account, combined with biometric authentication (e.g. fingerprint or facial recognition) on personal mobile devices for enhanced security and convenience. • Messages Box: Users can view tax-related messages, alerts, and personal tax information issued by the IRD in real time. • Quick Access to Individual Tax Portal: With a simple tap on the “Services” button, users can access the IRD’s Individual Tax Portal to use a wide range of online tax services such as e-filing tax returns, checking records and e-Stamping of documents. This app promotes e-Government services, streamlines procedures, and enhances user experience, enabling a smarter and more efficient way to handle tax matters.
Mark2Do
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Mark2Do - 極簡待辦事項管理 (To-Do List) 厭倦了煩瑣的 To-Do List 嗎?Mark2Do 為您提供一個極簡的待辦事項管理工具,讓您只需專注於記下待辦事宜,無需再為複雜的操作煩惱。 功能特色: - 簡潔界面:直觀易用的設計,讓您一目了然您的待辦事項。 - 快速記錄:輕鬆添加和管理您的待辦事宜,節省寶貴時間。 - 專注所需:只專注於記下您所想,您所需要的事,無多餘功能打擾。 無論是日常生活還是工作計劃,Mark2Do 都能幫助您保持條理,提升效率。立即下載,體驗極簡待辦事宜管理的魅力! 下載 Mark2Do,開始您的高效生活之旅吧!
Screenshots
Verdict
The clearest difference is iOS requirement: eTAX by IRD at 13.0 against Mark2Do's 15.6. On price, update cadence, ads and in-app purchases 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.
eTAX by IRD ships an update every 8 months, Mark2Do every 5 months. The most recent releases landed on November 4, 2026 and October 25, 2026 respectively.
| Parameter | eTAX by IRD | Mark2Do |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 8.3% of reviews | — |
| Update frequency | Every 8 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 30 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Inland Revenue Department | HiuChun Wong |
In-app purchases
eTAX by IRD
No in-app purchases
Mark2Do
No in-app purchases









