The importance of the role of wetland environments and the need for more approach so that students have knowledge and are aware of the significance of wetlands that exist around them brings the researchers to develop the Borneo Wetlands Mobile Application. This research employed a Research and Development focusing on Analyze, Design, and Develop phases. The participants on the needs analysis phase are ten lecturers and 95 English Department students from nine universities in South Kalimantan and 65 participants joined the Develop phase as the representative universities. The data was gathered from a questionnaire and a pilot test during the phases. The product was validated by three experts from media, content, and language fields. The results of the analyze phase showed that there is a need to develop reading materials that cover diverse text types from wetland topics due to the fact that not all university students are aware of the wetland existence. The next phase is design phase that resulted design brief. The third and last phase of this study is the application development phase with support from the IT team. The obtained scores from the validators are 80% (Very Good criterion), 82% (Very Good criterion), and 85% (Excellent criterion) respectively. Regarding the pilot test, most of the students responded positively (88.69%) with Excellent criterion. Wetlands can be one of the topics provided to foster a more nuanced awareness of wetlands as students live in South Kalimantan possessing many wetland areas. Students as users are encouraged to apply critical thinking and analytical skills to devise sustainable solutions, promoting a more practical approach. In short, this Borneo Wetlands application is valid and feasible to use for English Department students in South Kalimantan as well as for general users.