Major Companies Are Massively Switching to Swift: The Main Trend of 2025 in iOS/macOS Development

Major Companies Are Switching to Swift (iOS/macOS): Trend 2025

2025 has become a landmark year for the world of mobile and desktop development. More and more large corporations, from fintech giants to streaming services, are announcing a full or partial migration of their applications to Swift. If Swift was once perceived as a "young successor to Objective-C," today it is a mature, performant, and safe language that dictates new standards in the Apple ecosystem.

Why Swift?

The main reasons for the mass transition are development speed, code safety, and integration with modern Apple frameworks.

• Memory safety. Swift eliminates entire classes of vulnerabilities typical of C/Objective-C, which is critical for banking and medical applications.
• Performance. The LLVM compiler generates code comparable in speed to C++, but with a much more concise syntax.
• SwiftUI and Combine. Declarative interface and reactive programming allow reducing UI development time by 30–40%.
• Cross-platform (Server-side Swift). Vapor and Hummingbird make it possible to write backend code in the same language as the mobile application — stack unification.

Case Studies of Major Players

In 2025, the trend is confirmed by concrete actions of market leaders:

• Airbnb — completely rewrote the booking module in Swift, reducing the number of bugs by 60% and speeding up screen loading by 25%.
• Uber — migrated all internal driver tools to SwiftUI, which reduced the time to roll out updates from two weeks to two days.
• Revolut — uses Swift for the server side (Vapor) and the iOS client, achieving unified business logic and reducing maintenance costs.
• Spotify — announced a phased abandonment of Objective-C in favor of Swift in its desktop macOS application.

What Does This Mean for Developers?

The job market reacts instantly. Demand for Swift developers in 2025 has grown by 45% compared to 2023. Companies are looking for specialists who are proficient not only in the language but also in the modern ecosystem: SwiftUI, Async/Await, Swift Package Manager.

For those just starting their journey in iOS/macOS development, Swift has become the de facto standard. Objective-C is gradually moving into the legacy category — knowledge of it is becoming a niche bonus, not a mandatory requirement.

Forecasts for the Remainder of 2025

Analysts expect that by the end of the year, the share of new Swift projects among the top 100 App Store apps will exceed 90%. Additionally, the direction of Swift for embedded systems and IoT is actively developing, opening up further prospects for the language.

Thus, 2025 finally cements Swift as the primary language for the entire Apple ecosystem. Companies that have not yet started the migration risk falling behind in the competitive race, and developers investing time in Swift are acquiring one of the most in-demand skills on the market.

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