One of the most recent trends in mobile app development is 5G. This future-oriented technology was introduced in 2016, and since then, it has spread rapidly around the world. By 2021, 5G was already available in 620 cities, mainly in China, the US and South Korea (Statista).
Among other emerging innovations in mobile app development, voice assistants, biometric authentication, mobile wallets, wearables, the Internet of Things (IoT), and AR/VR are also worth noting.