"App stock" isn't a standard financial term, but it likely refers to the stock of companies that develop and sell mobile applications, or whose business models heavily rely on app usage. Investing in app stock can offer exposure to the rapidly growing mobile technology sector, which encompasses various industries like gaming, social media, e-commerce, and productivity tools. Companies like Apple, Google (Alphabet), Meta (Facebook), and numerous smaller, specialized app developers fall into this category. However, like any investment, app stock carries risks, including market volatility, competition, and the potential for changing consumer preferences in the fast-paced app landscape.