In 21st century learning, the development of smartphone-based applications to support education, especially literacy, has become a basic need. This study aims to analyze the factors that factor in user acceptance of an Android-based application called Kumandang, Reading Aloud Activities. This type of research is survey research. The subjects of this study were ninety participants consisting of teachers, parents, and guardians. The research instrument used in this study was a questionnaire sheet. The technique of data collection is the distribution of questionnaires. The data analysis technique uses a structural equation model with the help of the SMARTPLS application. The study model uses UTAUT2, which consists of several indicators, including; Performance Expectations (PE), Business Expectations (EE), Social Influence (SI), Facilitation Conditions (FC), Price Value (PV), Hedonic Motivation (HM), and Habits of Behavioral Intentions (H). The results showed that business expectations (EE) related to the ease and convenience of using Kumandang positively affected user acceptance. In addition, hedonic motivation (HM) related to fun and entertainment also affects parents' intention to use the Kumandang application. The results also show that performance expectations (PE), social influences (SI), facilitating conditions (FC), habits (H), and price effects (PV) do not affect parents' acceptance of using the Kumandang application.

Getting data on the mother language for primary students can be challenging in a multilingual setting as Indonesia. There are around 700 spoken languages ​​spoken in Indonesia. It is often challenging to assess a young learner first language directly because of the shortfall of assets accessible in each language. Getting information on every child's mother tongue acquisition is very important for bridging teaching instruction in primary years, as does in reading. This study's objective was to assess the validity and reliability of an adapted parent questionnaire on the first language development of Indonesian learners that is not specific to a particular language or cultural group. This research and development use a 4-D model (define, design, development, disseminate). The defined stage consists of focus group discussion resulting in the need for mother-tongue information to support instruction in reading comprehension. The design stage is the adaptation of the Alberta Language and Development Questionnaire (ALDeQ)'s existing questionnaire leading to the parent information questionnaire design fitted into the Indonesian context. Field tests and data analysis are conducted in the developmental stage. This descriptive quantitative research did not go through the dissemination stage because not being developed wider. The Gregory content validation formula obtained a score of 1, which was categorized as very high, indicating that the instrument is eligible. The Product Moment empirical validity indicates a high validity. Reliability tests using Cronbach's Alpha formula showed a value of 0.86 which means very high.