Data storage model in low-cost mobile applications

<span lang="EN-US">Mobile applications that have data transactions between users require a database relational management system (RDBMS) and RESTful API operating on the hosting service so all can access data. Renting is not cheap creating takes plenty of time. As an alternative to hosting, free version Cloud Firestore gives full rights has application programming interface (API) manage or However, limitations in terms storage capacity, read, write, delete processes. Therefore, redesigning process was carried out into low-cost model consisting SQLite NoSQL overcome this problem. The goal reduce space usage processing Firestore. tested with 6,030 results obtained were savings 47.27% usage, 83.08% write 91.26% read 83.19% compared test model.</span>