In Peru, IUU fishing creates challenges for fishers, the government, and buyers and sellers of fish, while also threatening the country’s marine resources. An estimated 60% of Peru’s artisanal fishing vessels are informal or illegal. WWF Peru developed an electronic permitting app to enable small-scale fisheries to more easily obtain relevant permits and reduce instances of bribe paying. In 2021-2022, the app was rolled out to fisheries in three cities who were provided support throughout the life of the pilot. Effectiveness was assessed using participatory methods to collect the experiences of fishers. Risk mitigation measures were taken to support the anonymity of participants in data collection. In 2023, additional work will identify wider corruption risks in Peruvian fisheries, engage national stakeholders to consider appropriate responses, and expand technology-enabled solutions to more industry sector and official processes (TNRC Pilot 2021-2023).