nowesr1/SnapStash-iOS ? reverse-engineered prompt

Build me a simple iPhone app called SnapStash that helps people import their Snapchat My Data JSON file and save their Memories in one place.

I want the app to let users pick the exported JSON from Snapchat, read the memory links or content from it, and then show those memories in a clean list or gallery so they can browse them later. Each memory should be easy to open, save, or download, and the app should keep things organized so it is simple to find stuff again. Make it feel like a straightforward utility app, not a social app.

The app only needs to work on iOS 15 and up, and it should be built in Swift for Xcode. Please make the flow very clear from import to viewing to saving. If you need to check anything about the current Snapchat export format or iOS file picking behavior, look up the latest docs online.