Dipyrrins (dipyrromethenes 1) are well-known for their ability to act as ligands in coordination chemistry. Dipyrrinato(metal) complexes feature different properties depending on their structural diversity, redox or catalytic properties, and ligand exchange propensity. Depending on the metal employed, they bear one or more ligands and are classified as homoleptic or heteroleptic. They have found applications in materials science, photonics, and photomedicine. In the latter context they have opened chemical space in the medicinal bioinorganic chemistry arena, primarily as anticancer and antimicrobial photosensitizers. The metal complexes have interesting post excitation characteristics through excitonic coupling (Davydov splitting), photoinduced electron transfer, charge transfer states leading in either radical pair (RP-ISC) or spin orbit coupling (SOC-ISC) intersystem crossing. There is a continuous competition between the 1 -* electronic transitions upon photoexcitation or the charge separated states formation which is modulated by the polarity of the environment polarity.