The engineers are currently on Mars, so several important factors that may influence the app's design and functionality include signal delay caused by distance, limited data capacity, and potential frequent power outages due to harsh weather conditions. To address these challenges, the Gmail app would require the following features: Offline functionality : Considering the likelihood of unstable connections, it is crucial to enable users to draft, read, and organize emails offline. Emails should be sent automatically once a connection is reestablished, and incoming emails should be downloaded automatically when connectivity permits. Low data usage mode : This feature could include data compression, particularly for attachments, to minimize data consumption. It may also involve restricting automatic synchronization and allowing users to select which emails and attachments to download. Power-saving mode : This mode would reduce screen brightness, limit background processes, and could be triggered when the battery reaches a certain threshold or during severe weather alerts. To enhance the user experience for the engineers, Google Apps such as Calendar and Tasks could be more prominently featured within the app to facilitate scheduling and task updates even in low connectivity scenarios.