Source code incomplete, building from repository is impossible

[pixeldesu]

Trying to build the app for iOS given the instructions in the README results in following error:

$ cd ios
cd: no such file or directory: ios

Trying to just run npm start after installing the dependencies to open up Metro Bundler to interact with the app locally, results in following build failure:

Web Bundling failed 471ms (index.js)
Unable to resolve "./src/App" from "index.js"

This is correct, as there is no src/App.js in this project, but https://github.com/joinloops/loops-app/blob/main/index.js indeed references it, suggesting that this app is only partially open-sourced.