Pirika is a popular litter collection and social contribution app that aims to make the world a cleaner place. By visualizing the act of litter collecting, the app motivates users to spread the word and join in the effort. Litter pollution is a serious issue worldwide, particularly when it leaks into rivers, oceans, and seas, causing damage to ecosystems and polluting our food. With 80% of marine litter originating from land, picking up litter is an important step in addressing this problem. Despite initial skepticism, Pirika has gained popularity and is now used in over 111 countries, with millions of pieces of litter already collected.

Created in 2011 by students from Kyoto University, Pirika was developed using university equipment. Initially met with skepticism, the app has since gained recognition and awards. It has been honored with the 1st Green Startup Awards' "Minister of the Environment" Award in 2021 and was the winner of the Orange Impact Challenge in 2020. It also received the Best Performance Awards at the Rise Up Festa in 2020. The app has garnered media coverage from various outlets, including NHK, TV Tokyo, The Japan News, The Asahi Shimbun, Nikkei Asia, and Yahoo News. The name "Pirika" is derived from the Ainu language, spoken by the indigenous people of Japan, and means "beautiful."

Join Pirika, the litter collection app, in tackling the global problem of litter pollution. By using the app, users can contribute to making the world a cleaner place. With its visualization feature and the ability to motivate others, Pirika aims to raise awareness and encourage collective action. Litter pollution is a significant issue, especially when it reaches bodies of water, causing harm to ecosystems and human health. By picking up litter, users can play a crucial role in addressing this problem. Despite initial doubts, Pirika has gained widespread popularity, being used in over 111 countries and having collected millions of pieces of litter. The app has received recognition through awards and media coverage, further highlighting its impact.