John Ternus took over as Apple’s chief executive on Tuesday, succeeding Tim Cook and becoming the fourth person to lead the technology giant since its founding.
Cook, 65, has moved into the role of executive chairman, where Apple says he will continue to assist with some matters, including engagement with policymakers around the world while Ternus, 51, joins the company’s board as he assumes responsibility for its day-to-day leadership.
The transition comes as Apple enters a period in which its biggest challenges extend well beyond the iPhone.
Ternus inherits a company valued at roughly $4.5 trillion, compared with about $350 billion when Cook became CEO in 2011. Under Cook, Apple expanded its services business, built major new product categories including the Apple Watch and AirPods, and strengthened its global supply chain.
But the company is also under pressure to define its next phase of growth, particularly as artificial intelligence reshapes the technology industry.
Apple’s slow progress in generative AI is likely to be the most immediate technological challenge facing the new CEO.
The company introduced Apple Intelligence in 2024 and promised a more capable, personalized Siri, but the rollout of some of the technology was delayed. Apple has since been working to bring a more advanced version of Siri to users, while competitors including Google and OpenAI have moved rapidly with AI-powered assistants and services.
The challenge is not simply to make Siri better. Ternus must determine how AI becomes a central part of the iPhone, Mac and Apple’s wider ecosystem without undermining the company’s long-standing emphasis on privacy and tightly integrated hardware and software.
Apple has also taken a different approach to AI infrastructure from rivals such as Microsoft, Google, Meta and Amazon, which have committed enormous sums to data centers and computing capacity. Apple has relied more heavily on partnerships and a relatively capital-light strategy.
That approach has protected Apple’s financial performance, but Ternus will have to show investors that the company can remain competitive as AI becomes increasingly important to consumer technology.
The issue is particularly complicated in China and Europe, where Apple faces different regulatory requirements and has had to adapt its AI strategy to local rules.
Ternus will have little time to settle into the job before stepping into the spotlight. Apple is expected to hold its annual iPhone launch event in September, with the company widely expected to introduce its next-generation iPhone lineup and potentially its first foldable iPhone.
The event could provide an early public test of Ternus’ leadership, even though the products themselves were developed largely before he became CEO.
Ternus spent roughly 25 years at Apple before becoming senior vice president of Hardware Engineering in 2021. His career has centered on product development, giving him deep experience with the hardware side of the company and making him a natural successor for a business increasingly focused on integrating AI into physical devices.
The question will be whether that engineering background can translate into leadership across Apple’s much broader businesses, from services and software to finance, regulation and international affairs.
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Ternus will also inherit one of the most complicated parts of Cook’s job: managing Apple’s relationships with governments.
Cook became an important interlocutor between Apple and policymakers, particularly during periods of tension over tariffs, manufacturing and Apple’s dependence on China. Apple has continued diversifying production toward countries including India and Vietnam as U.S.-China tensions have increased.
Cook’s move to executive chairman could help ease the transition. Apple has said he will remain involved in dealing with policymakers, potentially allowing Ternus to concentrate more heavily on Apple’s products and operations.
But the new CEO will ultimately have to establish his own relationships with political leaders and regulators.
That responsibility comes as governments around the world take a harder line toward the power of the largest technology companies.
Apple’s control over the App Store remains under pressure, particularly in Europe. The company recently announced further changes to its European App Store business terms following discussions with the European Commission, including adjustments to fees and its rules for alternative app distribution and payments.
The European Union has also required Apple to permit alternative app marketplaces and other forms of app distribution under its Digital Markets Act.
In the United States, Apple continues to face antitrust pressure over its control of the iPhone ecosystem and App Store.
For Ternus, the issue is bigger than legal compliance. The App Store is a major part of Apple’s services business, and changes to its rules could affect one of the company’s important sources of recurring revenue.
Perhaps the longest-term challenge is deciding what comes after the iPhone.
Apple has successfully expanded into wearables and services under Cook, but its most ambitious recent new hardware category, the Vision Pro headset, has struggled to achieve the commercial impact of the iPhone, Apple Watch or AirPods. The company also abandoned its long-running electric-car project.
That leaves Ternus with pressure to identify the next major platform.
Apple is exploring products and technologies that could put greater emphasis on AI-enabled devices, including potential new wearable categories. The company’s enormous installed base gives it an advantage: more than two billion active devices provide a ready-made audience for new services and hardware.
But the next breakthrough will have to be more than an interesting new device. It will need to become a meaningful business capable of adding another engine of growth to a company already operating at extraordinary scale.
Ternus is not being asked to rebuild Apple from the ground up. He is taking over a company that remains financially powerful, has a huge installed base and continues to generate enormous revenue.
His challenge is to keep that machine moving while making Apple more competitive in the technologies that will define the next decade.
Cook’s legacy will be difficult to match. During his tenure, Apple’s annual sales grew from about $108 billion to more than $400 billion, while the company’s market value climbed from roughly $350 billion to more than $4 trillion.
Ternus therefore begins his tenure with two competing demands: preserve what has made Apple extraordinarily successful while making changes quickly enough to prevent the company from falling behind.
The first signals will come through Apple’s products. The more consequential test will be whether Ternus can turn Apple’s enormous hardware ecosystem into a credible platform for the AI era.
About the Author
Cecilia Attah is a tech analyst with a degree from Benue State University. She covers tech news and startups at TechRegard with a focus on how technology is transforming Africa and shaping the global landscape.
