How the COVID Health Crisis has Revitalized QR Code Technology

How the COVID Health Crisis has Revitalized QR Code Technology

Summary :

How QR Code Technology was used during the Health Crisis
The dissemination of online questionnaires through QR codes
Using Eval&GO for the distribution of your online questionnaires



The QR code was invented in 1994 by the Japanese company Denso Wave, a subsidiary of Toyota. Originally, the team led by Masahiro Hara developed this technology to track the itinerary of spare parts. They aimed to create a high-capacity barcode capable of storing more information than traditional barcodes. The QR code was designed to be easily readable by scanners and mobile phones, making it a versatile tool for storing and transferring data.

Previously underutilized, the COVID-19 health crisis has given QR code a new lease on life. It has become an essential tool in helping to limit the spread of the virus, facilitating tracking and tracing measures, as well as providing important information to users. It is now widely used in various fields, ranging from advertising and marketing to logistics, product tracking, ticketing, and much more.


How QR Code Technology was used during the Health Crisis

Contact Tracing

QR codes were extensively used to implement contact tracing systems in many countries. Establishments such as restaurants, bars, hotels, and entertainment venues required customers to scan a QR code upon arrival. This enabled health authorities to quickly contact individuals if needed by identifying close contacts.

Health Passes and Vaccination Certificates

QR codes were utilized to facilitate the verification of health passes and vaccination certificates. Individuals could scan a QR code with their smartphones to prove their vaccination status or negative test result. This streamlined the verification process when accessing certain venues or events.

Contactless Menus and Information

QR codes were used to replace physical menus in restaurants and cafes. Customers would scan the code to access the menu on their phones, avoiding the sharing of physical objects and reducing the risk of transmission. It is worth noting that even today, many restaurants continue to use QR codes to share their menus.

Information and Awareness

QR codes were also employed to provide information and guidance on COVID-19 prevention. Posters containing QR codes were placed in public spaces, public transportation, and offices to redirect users to online resources such as government websites or health organization sites, offering quick and easy access to accurate information. Scanning a QR code to access information has become commonplace instead of receiving a paper document.

Contactless Payments

QR codes were used to facilitate contactless payments. Mobile payment applications integrated features that allowed scanning merchants' QR codes for quick and easy payments without handling cash or using payment terminals. Many people adopted this payment method and have stuck with it.


The dissemination of online questionnaires through QR codes

The dissemination of online questionnaires through QR codes

QR codes also allow for the dissemination of online questionnaires.

Here are some examples of online questionnairesthat can be distributed through QR codes:

Opinion surveys

These questionnaires are used to collect the opinions and attitudes of respondents on different subjects. They can cover areas such as customer satisfaction, consumer preferences, political opinions, etc.

Assessments and feedback

Questionnaires can be used to gather evaluations and feedback on specific products, services, or experiences. This can help organizations improve their offerings and better meet the needs of their customers.

Academic studies

Researchers and universities often use online questionnaires to conduct academic studies and collect data from a large sample of participants. This can include surveys on behaviors, attitudes, perceptions, or other specific research areas.

Employee evaluations

Questionnaires can be used in a professional context to gather evaluations and feedback from employees on various aspects of their work, such as job satisfaction, engagement, performance evaluation, etc.

Event surveys

Event organizers can use online questionnaires to collect feedback and comments from participants. This can help evaluate the success of the ev

It is important to personalize the questionnaire according to your specific objectives and target audience. Make sure to ask clear, precise, and relevant questions to obtain meaningful and actionable responses.


Using Eval&GO for the Distribution of Your Online Questionnaires

Eval&GO allows you to create all your online questionnaires and distribute them via a QR code.

Follow these steps:

  1. Once you have created your questionnaire, access the QR code automatically generated by Eval&GO in the questionnaire distribution module. No need to use an online QR code generator such as QR Code Generator, QRStuff, or any similar tool to convert your questionnaire link into a QR code! Eval&GO generates it for you!
  2. Download the code as an image and incorporate it into your communication materials or print it directly on your posters, brochures, flyers, business cards, etc.
  3. Explain to respondents how to use the QR code to access the questionnaire. You can include written instructions next to the code to guide them.
  4. Before distributing your questionnaire online, make sure to test the code by scanning it to verify that it works correctly.
  5. Place the QR code in strategic locations where your target audience is likely to see it. This can include physical locations such as stores, offices, events, or online channels such as websites, social media, newsletters, etc.

Ensure that you consider ease of access, clear instructions, and visibility of the QR code to optimize respondent participation.


In summary, the COVID-19 health crisis has democratized the use of QR codes. Its widespread adoption has facilitated tracking measures, enhanced security, provided important information, and promoted contactless interactions, thus contributing to crisis management and public health protection.

The distribution of online questionnaires has been greatly simplified. Scanning has become a reflex for many, making it easier to access online forms and optimizing the number of responses. Finally, QR codes have familiarized the population with the use of new technologies.