Despite the diversity of life — one universal fact of existence is that it ends. Our team found that only 1 in 3 adults in the U.S. have made plans for their end-of-life proceedings or have spoken to a loved one about their wishes. Thus, we designed LifeKit to motivate and mobilize individuals to prepare for the unexpected. LifeKit is a mobile app concept within the OS ecosystem that makes end-of-life planning approachable, proactive, and streamlined; while also opening up opportunities to integrate into larger systems within the government, legal, health, and financial sectors. The app breaks down daunting planning tasks into bite-sized steps and allows users to update, authorize, and legalize their wishes at their own pace. It also prompts users at the time of life-changing events to ensure that planning is both relevant and dynamic. LifeKit makes planning a part of living, enabling better peace of mind for individuals and their loved ones.