Apple's revenue by business in the past 5 years shows a shift towards the iPhone, which saw revenues increase from $142.38 billion in 2019 to $200.58 billion in 2023. Services also saw growth, from $46.29 billion to $191.97 billion in the same period. The iPad and Mac have remained relatively stable, with the iPad seeing a slight decrease in revenue and the Mac seeing a more significant decrease. Overall, Apple's revenue has increased from $274.54 billion in 2019 to $398.5 billion in 2023.