Tim Cook, Apple’s Chief Executive Officer, is set to step down at age 65, concluding a remarkable tenure that began in 2011 following Steve Jobs' passing. His departure on September 1 marks the end of an era during which Cook successfully scaled Apple into one of the world’s most valuable companies, fundamentally reshaping its business model and product portfolio.
Building a Robust Services Ecosystem
Under Cook’s leadership, Apple significantly expanded its services division, transforming it into a high-profit ecosystem that now drives a substantial portion of the company’s earnings. The App Store, a cornerstone of this strategy, has flourished, handling over $1.3 trillion in transactions. Key introductions like Apple Pay, Apple Music, iCloud, and Apple TV+ further bolstered this segment, generating an estimated $106 billion in revenue in 2025.
Pioneering Apple Silicon
A pivotal strategic shift during Cook’s tenure was Apple’s transition away from Intel processors to its custom-designed Apple Silicon for Mac computers. This initiative began with the introduction of the M1 chip in 2020 for models like the MacBook Air and MacBook Pro, and has since evolved through to the M5 series. These custom chips have significantly enhanced Mac performance, power efficiency, and battery life, providing a competitive edge against rivals.
Innovating in Wearable Technology
Apple’s entry into the wearable market under Cook’s guidance proved highly successful. The Apple Watch, launched in 2015, initially faced mixed reviews but evolved from a fashion accessory into a sophisticated health and fitness companion, featuring ECG monitoring, blood oxygen tracking, and fall detection. In 2016, Apple further disrupted the personal audio market with AirPods, pioneering the popular “true wireless” earbud format and solidifying Apple’s dominance in wearables.
Venturing into Spatial Computing and AI
Cook also steered Apple into emerging technological frontiers. At WWDC 2023, the company unveiled the Apple Vision Pro, marking its entry into spatial computing. While priced at $3,499 in the US and not yet a mass-market product, it represented an early step in Apple’s ambition for next-generation interfaces. Production of the original device reportedly halted in early 2025 after shipping approximately 390,000 units globally.
The company also embarked on its AI era in 2024 with the introduction of Apple Intelligence, described by Cook as a “personal intelligence system.” A significant development in this space was the multi-year partnership announced with Google in January 2026, integrating Google Gemini for complex cloud tasks while maintaining user data privacy through Apple’s Private Cloud Compute (PCC).
Achieving Unprecedented Market Valuation
Tim Cook's era was characterized by Apple reaching unprecedented market valuations. The company became the first to achieve a $1 trillion market capitalization in 2018, followed by $3 trillion in January 2022, and reaching the $4 trillion milestone in 2025. As Cook transitions out of his role, John Ternus, Apple's senior vice president of hardware engineering, has been appointed as his successor, poised to lead the company into its next chapter.