  Information technology-based applications have entered the era of mobile
phones or smartphones such as those using the Android or iOS operating system.
Mobile-based application development has become a trend for today's society.
Especially during the global COVID-19 pandemic, almost all activities are
carried out remotely through mobile-based applications. To prevent the spread
of COVID-19, mass vaccines are given to the public. So that the process of
administering the vaccine does not cause crowds, it is necessary to create a
mobile-based application. So that the application can be further developed
properly, it is necessary to make a prototype. The prototype consists of 5
(steps): 1) Quick plan, 2) Modeling Quick Design, 3) Construction of prototype,
4) Deployment Delivery & feedback, and 5) Communication. In this research, the
InVision design tool is used which can help design prototypes for both mobile
and web versions. InVision has been widely used in making prototypes and is
used by many digital companies in the world. The results obtained are in the
form of a prototype application for the registration of vaccine participants
via mobile phones and also the web. The programmers will easily translate the
prototype results into a mobile-based application for the benefit of mobile
phone-based online vaccine registration.
