Mobile-Assisted Language Learning (MALL) use is increasing and it is good to be able to provide language learners with new resources to enhance their language learning experience. One such resource is WordBricks, a non-commercial, educational app that facilitates the learning and reinforcement of grammar rules. It uses bricks and connectors of different colours and shapes for different parts of speech, and the learner can (only) form grammatically correct sentences. Learners can choose to form sentences from examples or create their own original sentences. Originally, WordBricks was designed for personalised, individual, out-of-classroom learning for English language learners. This paper provides an overview of research on the original WordBricks app for English. A version of WordBricks has been developed for Irish and adapted for use in the primary school setting. There are very few interactive resources available for Irish and the Irish WordBricks app is a new addition to the Irish Computer-Assisted Language Learning (CALL) cannon. This paper reports on how the Irish WordBricks app was used by teachers and students in a primary school and the feedback received on the app. [For the complete volume, see ED578177.]