Piece by piece all of the app was replaced with web views for the website, and keeping the native tab menu at the bottom. No money was saved, but at least they didn't have to update the native parts of the app as features stopped working because of legacy systems being shut down. They kept the native mobile devs and fired some of the web devs instead to save money. Even though the website now needed a browser version and a slightly modified app-friendly version. No biggie, but it complicated the testing, as the responsibility for most of the app was moved to the web teams.