renvielo-00/VexAi ? reverse-engineered prompt

Build me a simple and polished Expo mobile app called VexAi.

I want it to feel like a clean modern starter app, with a nice home screen, some reusable components, and a layout that looks good on both iPhone and Android. Use the existing assets and component folder if they help, and make the main screen feel finished, not like a blank demo. Include a few basic interactive pieces like buttons, cards, and a smooth loading or welcome area so it feels like a real product.

Keep the code easy to understand and organized so I can change the text and visuals later. If you need anything from the current Expo docs, look it up online. Focus on making the app look good and run cleanly in Snack or Expo, with no extra setup needed.