This article presents the evaluation of the feasibility and practicality of the GeoMaritim application, an iSpring Suite-based instructional tool on Indonesia's Maritime Axis topic, whose design and development process was reported in a previous study. This study specifically assesses the application's feasibility and practicality based on media-expert, material-expert, teacher, and student evaluations, data not previously published. A quantitative descriptive design was used with four instruments: media-expert and material-expert validation sheets, a teacher assessment sheet, and a student response questionnaire, analyzed through mean scores converted to a five-point feasibility scale and response percentages. The material expert rated all aspects highly feasible (91%, 84%, 100%). The media expert's first-stage validation revealed weaknesses in functionality and accessibility, which improved to the practical category (80%, 80%) after revision. The geography teacher rated all aspects highly practical (95%, 93%, 93%), and students gave highly practical responses on display, language, and learning-benefit aspects (88%, 86%, 86%). Revisions included added content, higher-resolution display, improved navigation, and an online access link. These findings confirm that the GeoMaritim application is feasible and practical for geography instruction on the Maritime Axis topic.