Nova is a Linux distribution sponsored by the Cuban government that launched in February 2009.
They do it during their algorithm-based daily trading sessions. Mark Campbell, financial analyst at Nova Investments Ltd, said: “Nova APP is a trading system that uses existing infrastructure and high-speed computers to buy and sell assets, currencies and futures in the financial markets. Open Play Store and search for 'nova Launcher'.
How do I uninstall Nova launcher? Swipe up on an empty spot on the home screen to open the app drawer.