This is an ambitious solution looking to address a complex problem. It demonstrates good engagement with the responsible principle of global responsibility. What areas did you explore and research to identify this challenge? What are the current challenges of coordinating aid during and after a natural disaster? Is it proximity, accessibility, disruption to infrastructure etc? How will you ensure that your solution is able to address this problem and is resilient to the specific challenges that natural disasters pose? Who is your target audience? Have you considered how they will use your proposal? You mention the UN and development charities but I would be keen to understand who will ensure that the data is accurate and relevant i.e who manages the platform? Finally, I like that you have included the affected communities as part of your design brief. To better address the inclusive principle you might want to consider how their viewpoints are included in addressing this problem. What local knowledge might they be able to contribute? Will they have access to the app? If so, how will they use it during a natural disaster when critical infrastructure like telecoms is often disrupted? A strong start and I'm looking forward to seeing how you refine this idea.