Cafe Gelateria al Teatro is Reichenbaachstrasse has (in my opinion) the best ice creams in Munich. It is a small, local and authentic Italian "Eiscafe" (=ice cream shop). They close for some months during winter time.
Der verrückte Eismacher opened its doors in 2012 and became famous because they were the first to offer ice cream with bratwurst flavor. Today they have even more crazy flavors: guacamole, tequila sunrise, tortilla chips, etc. and for the conservatives they also have the more traditional flavors (oreo, bourbon vanilla, champagne and strawberries, etc.).