This section introduces the TnECHO Report App, designed as an example of structured report construction in targeted neonatal echocardiography, emphasizing a systematic, physiology-driven approach to image interpretation and clinical integration. This tool reflects core principles of NH-TNE practice, including standardized acquisition, comprehensive measurement, and synthesis of findings into a clear, clinically actionable impression, aligned with educational frameworks that highlight structured reporting and integration with bedside decision-making. The app provides learners and clinicians with a practical template to organize key domains such as shunt physiology, ventricular function, pulmonary hemodynamics, and overall cardiovascular phenotype, reinforcing consistency and clarity in communication. As with all NeoCardioLab resources, this section includes complementary teaching material and serves as a scaffold to support training in neonatal hemodynamics and TnECHO within a broader educational ecosystem of modules, cases, and references. This tool is provided solely for educational purposes and to support learning and standardization of reporting approaches. It is not intended to guide clinical decision-making independently, and should not replace formal training, clinical judgment, or multidisciplinary collaboration. As emphasized across NeoCardioLab, safe and effective practice in neonatal hemodynamics requires appropriate expertise, structured training, and integration within a clinical care framework.