Apple’s iOS 27 has been available for nine days, bringing a wide range of changes to iPhones, although much of the early attention has centred on Siri and its redesigned interface.
A former Apple software engineer, who reportedly spent four years working on the iOS team, claimed major annual updates typically contain more than 200 changes while only a small number receive extensive publicity.
According to the former engineer, many users consequently continue using their iPhones much as before without discovering numerous tools introduced through the latest software.
Performance Improvements Among Claimed iOS 27 Upgrades
The former engineer described iOS 27 as Apple’s biggest iPhone software update in three years and claimed it includes performance improvements beyond the heavily promoted Siri features.
Among the claimed improvements are apps launching up to 30% faster, photos loading 70% faster and AirDrop transfers becoming as much as 80% faster.
However, the supplied account does not provide benchmark data or testing methodology supporting those performance figures.
Additionally, iOS 27 reportedly introduces a control that allows users to adjust the appearance of the interface through a single slider.
Safari, Wallet and Automations Get New Tools
Other highlighted features reportedly include Safari alerts when products fall in price and the ability to create automations using plain-language instructions.
The update is also said to provide separate volume controls for alarms, potentially giving users greater control over sound settings.
Meanwhile, Wallet reportedly gains a bill-splitting feature, while iMessage includes a drawing tool that users may not immediately notice.
The account argues that these everyday additions have received considerably less attention because coverage has focused heavily on Siri’s artificial intelligence capabilities.
The supplied information refers to 12 lesser-known features overall, although it does not provide complete details of all 12.
iOS 27 dropped 9 days ago. Hundreds of millions of iPhones updated.
Most people noticed one thing: Siri looks different. Then they went back to using their phone exactly the same way.
A former Apple software engineer who spent 4 years on the iOS team told me: "Every year, Apple…
— Evon (@_evon3929) September 24, 2026
