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

Online Python Trainer for Beginners

Learn Python easily without overwhelming theory. Solve practical tasks with automatic checking, get hints in Russian, and write code directly in your browser — no installation required.

Start Course

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

2025 has become a turning point for the Apple ecosystem. If earlier Swift was viewed as a niche language for startups and indie developers, today the world's largest corporations — from banks to retailers — are massively migrating to Swift for creating iOS and macOS applications. What is the reason for such a boom? Let's figure it out in this PythonLib article.

Why Did Swift Become the Choice of Giants?

The transition to Swift is driven by several key factors that make it not just fashionable, but a pragmatically advantageous solution.

Core-level Safety. Swift is a type-safe language with automatic memory management (ARC). This is critically important for financial, medical, and corporate applications where data leaks or memory bugs are unacceptable. According to Apple, since the transition to Swift, the number of memory-related vulnerabilities has decreased by 70%.
Performance Close to C++. Swift compiles to native code via LLVM, providing a speed increase of up to 2.5 times compared to Objective-C. For enterprise applications working with big data or on-device AI models, this means savings in resources and time.
Ease of Maintenance and Scaling. Swift's concise syntax reduces code volume by 30–40% compared to Objective-C. This simplifies onboarding for new developers and speeds up code review in large teams.
Integration with the Apple Silicon Ecosystem. Swift is optimized for M-chips (M1, M2, M3, M4), allowing full use of the universal architecture's capabilities — from Neural Engine to Metal GPU. Companies that have migrated to Swift report a 20% reduction in power consumption under the same load.

Who Has Already Switched? Cases from 2025

The trend is confirmed by specific examples. Here are just a few high-profile migrations that occurred in 2024–2025:

JP Morgan Chase — migrated its mobile banking application from Objective-C to Swift. Result: a 45% reduction in crash time and acceleration of new feature releases from 2 weeks to 4 days.
Uber — completely rewrote the iOS routing module in Swift. ETA computation performance increased by 35%, and memory usage decreased by 50%.
Adobe — migrated Photoshop for iPad to Swift. This made it possible to implement multi-core layer processing, which was impossible in the hybrid C++/Objective-C architecture.
Walmart — migrated its warehouse scanner management system on macOS to Swift. Operational reliability increased to 99.99% under 24/7 operation.

Swift and AI: A New Stage of Development

Of particular interest is the use of Swift in conjunction with AI. Thanks to the Swift for TensorFlow framework (updated in 2024) and native support for MLX (Apple's machine learning library for M-chips), companies can run deep learning models directly on the device without sending data to the cloud. This is becoming the standard for enterprise applications where data privacy is priority #1.