Tajweed science is the study of the technique of issuing letters according to their makhraj and giving reading rights and their characteristics with the aim of avoiding verbal errors in saying the letters of the Qur'an. One of the learning media used is a mobile-based learning media that includes operating systems, middleware, and applications. With this media, it is expected to help simplify and shorten time in studying recitation. The results of functional testing of the system with access as a user runs according to its function. At the application testing stage which is performed using 2 androids namely: android 4.2 (Jelly Bean), android 7.0 (Nougat).All functions of the system run as desired. The test results of learning using Tajwid Mobile-Based Science Learning Application obtained the percentage of functional testing results are 100% successful. For the final results on the pre-test and post-test, the results showed that from 20 students who had played the game produced 17 students who increased with a percentage of 65%, 3 students who declined with a percentage of 15%, and 4 students who were significant with a percentage of 20 %. Tajweed science learning application is used for children aged 8 to 12 years and this application can only be run on Android.