Colitas Felices App is an application developed by the Colitas Felices Institution to provide social assistance in the area of ​​Quetzaltenango and its surroundings with the Sterilization Days for dogs and cats to try to reduce their over population in the areas of Quetzaltenango, Similarly, the App offers the option of generating lawsuits against animal abuse thanks to Decree 05-2017 of the Republic of Guatemala.