This paper explains the issue of keeping in compliance with HACCP requests while running a catering facilites, and also how to accelerate the generation of HACCP documents by using HACCAPP mobile app. Through this paper, a system is implemented that enables facilitation and filling of these documents. System consists of mobile and web application, and it will be made available to the wide circle of users through Google Play web store. Mobile app is developed for Android mobile devices and it is linked to web API that is developed using .NET framework. Mobile app was developed by following MVP design patterns and it makes use of Google Cloud Messaging and Retrofit for communicating with server. Server is developed using ASP.NET framework and it uses Entity Framework and SQL server database. Paper is divided into two parts, a theoretical and practical one. In the theoretical part, the technologies used are described. In the practical part, the way these technologies are implemented and used is described.