CACAOs AT -IPM (Action Threshold - Integrated Pest Management) Mobile Application System, is to help make control decisions using pesticides. In the Integrated Pest Management (IPM) strategy, the decision -making component in pest management is very important. In line with the era of smart agriculture, a decision -making component in IPM for the management of the main pest of cocoa, namely the Cocoa Fruit Boring Caterpillar (CAB) has been developed. This application can be utilized by farmers in Malaysia including Southeast Asia for the purpose of effective control of UPBK and save pesticide input costs by 50% as well as labor costs. Through this application, users can make decisions based on monitoring the dense flowering season or the distribution of cocoa fruit sizes that are critical to UPBK attacks in the garden with the use of the AT-IPM CACAO mobile application. In short, AT-IPM CACAO is an interactive support application that has been developed to help cocoa growers decide on the right time for pesticide spraying activities and schedule spraying activities based on observations of the flowering season or distribution of cocoa fruit sizes critical to pest infestation. koko, UPBK. In line with pest management with integrated pest management (IPM) approach, this application can help cocoa growers to use pesticides prudently and cost effectively in an effort to control UPBK attacks. The use of this application is expected to help in increasing cocoa yield and cost savings of UPBK control.