Semi-On is a free Android application developed by JVH Apps. It is an educational and reference program in the field of medical semiotics.

The app aims to help medical professionals remember difficult terms and procedures by providing a mini-manual of medical semiotics. It covers important topics such as anamnesis, physical examination, and a dictionary of over 300 essential semiotic terms.

Anamnesis is the initial step in patient care, and Semi-On provides a concise review of the key points to conduct a thorough anamnesis. Additionally, the app highlights the most important aspects of the physical examination, guiding users on where and how to examine their patients.

One of the standout features of Semi-On is its collection of auscultatory sounds. The app includes a bank of audio recordings of specific auscultatory sounds, such as heart murmurs, lung sounds, and abdominal sounds. This feature assists users in recognizing the main abnormalities in auscultation.

Please note that while the app is free to use, it offers in-app purchases to unlock additional features. It also requires an internet connection and may display third-party advertisements.

For any inquiries or support, please visit the developer's support website or contact them via email at