Most policies for the industrial fish fisheries are based on principles such as average length of first maturation, seasons of reproduction and recruitment, among others. These principles are mainly based on the information on fish maturity stages. However, this information is difficult, laborious and very costly. Even when trying to estimate without more in-depth techniques (such as histology), errors of up to 70% can be seen in classifications, which can lead to important errors in interpreting the ecology of the fishery resource. Thus, we propose to create an app that, through the camera of any cell phone, can obtain more reliable and faster information, in order to help preserve fish stocks. The creation of this app could be considered as a great and important research, so we can get subsidies with fishing foundations and/or universities, which would provide us with both the space and the necessary equipment for the analyses.