Hyperthyroidism is a part of thyroid disorder and endocrinological disorder. With the various
nonspecific clinical manifestations and long-term treatment of the condition causing for difficulties in
recognizing the signs and symptoms and managing patient's condition. The lack of method to manage
hyperthyroidism condition, alongside with various prevalent issues, lowers patient's Quality of Life
(QoL). In this research, the development of a monitoring-based application prototype that helps
patients manage their condition called ThyroidCare is carried out and then the potential of this idea
will be analyzed. This research was conducted through ideas and plans, then moves into designing and
prototype, and ends with prototype evaluations. The design results are evaluated for usability based
on user experience in operating the prototype. Prototype evaluation results with usability testing
scores at 90.625 out of 100. After completing the functionality evaluation, the research continues with
evaluating user satisfaction using the SERVQUAL method. The results of the functionality test yield
final average score reaching 4.85 out of 5. The satisfaction questionnaire gave an average expectation
score of 4,629 and an average perception score of 4,482. These results indicate the potential for
developing the ThyroidCare as an application to assist hyperthyroid patients in managing and
monitoring their condition.