Comparison

IMPACT vs 衞生署DH

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

Head to head
About

IMPACT

This medical reference app provides health professionals with guidelines on appropriate antimicrobial drug use. It incorporates the latest scientific evidence and local pathogen data to combat antimicrobial resistance and improve patient care.

Highlights
  • Antimicrobial drug usage guidelines
  • Empirical therapy for infections
  • Treatment of infections with known pathogens
  • Surgical prophylaxis data
  • Pathogen prevalence and sensitivity patterns
  • Safe antibiotic use tips
  • Penicillin allergy management
Features
Read full description

The IMPACT Guideline serves as an invaluable reference tool for medical and health professionals in reinforcing the appropriate use of antimicrobial drugs. Antimicrobial resistance has reached alarming levels. IMPACT Guideline recognises the dangers of antimicrobial resistance, the tremendous adverse effect it has on quality medical care, and the need for a strong, coordinated and multifaceted response. The IMPACT Guideline combines the latest scientific evidence on the usage of antimicrobial agents, empirical therapy of common infections, treatment of infections with known pathogens and surgical prophylaxis with data on the prevalence and sensitivity patterns of different pathogens in Hong Kong. It also contains practical tips on the safe use of antibiotics in inpatient settings, management of penicillin allergy and application of diagnostic tests on clinical microbiology. Disclaimer: The IMPACT Guideline app is intended for medical professionals as a reference only and is not intended to be prescriptive or a substitute for clinical judgment in the management of individual patients. It is not a complete or authoritative diagnostic or treatment guide. Medical professionals are encouraged to obtain relevant information from other sources, including the latest drug alerts, and exercise their clinical judgment.

About

衞生署DH

This app offers a comprehensive public health information portal with e-services and resources. It features license validation, mental health support, health tips, event calendars, and various health tools. It's designed for healthcare professionals, institutions, and the general public seeking health information and services.

Highlights
  • License scanner and validation
  • Mental health chatbot support
  • Public health tips and updates
  • Event calendar for health programs
  • Access to e-forms and health tools
  • Information on vaccination and dental services
Features
Read full description

The @DH App is a user-friendly electronic public health information platform created by the Department of Health in Hong Kong. It provides a convenient gateway to essential e-services and resources, whether you are a healthcare professional, work at an institution, school, or business, or are part of the general public. The key features include: ***【LATEST FEATURE: POPULAR FUNCTIONS】*** • Browse popular vaccination programmes and dental services offered by the Department of Health. ***【LATEST FEATURE: LICENCE SCANNER & SEARCH】*** • Easily validate the QR codes of licensed pharmacies, Chinese medicine traders, private healthcare facilities, and more. • Simply scan the QR code at the designated location to access detailed information about the license. • Receive a pop-up alert if the QR code is invalid, ensuring your peace of mind. • Effortlessly browse through various licensing databases for quick verification. 【MENTAL HEALTH CHATBOT】 • Meet your mental health supportive companion Bonbon chatbot, available 24/7 to support you through tough times. • Access suggestions and resources right at your fingertips, empowering you to optimize your mental well-being. 【HEALTH TIPS】 • Stay informed by following the social media pages of the Centre for Health Protection. • Gain access to the latest public health information and press releases to keep up with important updates. • Explore a variety of public health tips, including infographics, engaging videos, practical tips, and publications to enhance your knowledge. 【EVENT CALENDAR】 • Explore a wide range of workshops, programs, health talks, and seminars across various categories. • Discover events based on your interests. • Easily add your chosen events to your personal mobile device calendar to help you plan your schedule effectively. 【OTHER E-SERVICES & USEFUL TOOLS】 • Access convenient e-forms. • Get tested for HIV with ease. • Find support to help you Quit Smoking. • Calculate your Alcohol consumption with our tool. • Explore our Digital Herbarium for Chinese Medicine information. • Browse various Service Points for assistance. Stay tuned for more upcoming features!

Screenshots

IMPACT4 screens
衞生署DH4 screens

Verdict

The call

The clearest difference is ads: IMPACT at none against 衞生署DH's shown. IMPACT also leads on monetization model (free vs ad-supported) and iOS requirement (13.0 vs 15.1). 衞生署DH's advantage is review sentiment (100% vs 67%). On price, update cadence, 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

IMPACT ships an update every 3 months, 衞生署DH every 2 months. The most recent releases landed on June 25, 2026 and June 7, 2026 respectively.

Scorecard4 real differences · 4 level
IMPACT versus 衞生署DH: the parameters behind the verdict, then further details
ParameterIMPACT衞生署DH
PriceFreeFree
Positive reviews66.7% of reviews100.0% of reviews — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size114 MB44 MB
Age rating4+4+
DeveloperInfection Control Branch, Centre for Health Protection, Department Of Health, HKSARDepartment of Health, HKSARG

Customer experience

IMPACT

Written reviews6 reviews
Positive66.7%
Neutral16.7%
Negative16.7%

衞生署DH

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

IMPACT

No in-app purchases

None

衞生署DH

No in-app purchases

Questions

Is IMPACT free?
IMPACT is free to download, with no in-app purchases.
Is 衞生署DH free?
衞生署DH is free to download, with no in-app purchases.
Do IMPACT or 衞生署DH have ads?
衞生署DH shows ads; IMPACT does not.
Which is updated more often, IMPACT or 衞生署DH?
IMPACT ships an update every 3 months, and 衞生署DH every 2 months. Most recently, IMPACT was updated on June 25, 2026 and 衞生署DH on June 7, 2026.

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