This document presents two alternative designs for the Bloom Bike app, along with a detailed evaluation of their usability based on Jakob Nielsen's 10 Usability Heuristics. Alternative-1 focuses on a streamlined user experience with a clear emphasis on bike hiring and payment. Alternative-2 introduces a subscription model and time scheduling features, catering to a wider range of user needs. The evaluation highlights the strengths and weaknesses of each alternative, ultimately recommending Alternative-2 as the more comprehensive and user-friendly solution.