Which was one of the first popular app stores launched for smartphones?

What year was the Apple App Store launched?

Which of the following programming languages is most commonly used to develop Android apps?

Which mobile app became the most downloaded app globally during the COVID-19 pandemic in 2020?

What is the function of a "backend" in a mobile app?

Which company owns the Android operating system?

What is an SDK in mobile app development?

Which app development framework allows building both Android and iOS apps using a single codebase?

Which of the following was a major change introduced in mobile apps over the years?

What is a "responsive design" in mobile apps?