This article presents an application to measure levels of technological dependence in adolescents and young people. The first phase of this research consisted of a Systematic Literature Review (SLR) to collect data on the detection and risks of excessive and harmful use of digital technologies. The data collected in SLR became the base for interviews with 05 psychologists and a survey with 566 individuals between 12 and 21 years of age. Based on field research and the "Internet Addiction Test" (IAT), which was adapted for this public, the Girassol application was developed. The first validation with 05 health/education professionals and 07 adolescents/young people was 83.3% positive, and the second validation had a positive evaluation of 98.49%.