Apple Inc.

Apple possesses a formidable and multifaceted moat. The company’s brand is among the most powerful globally, fostering customer trust and premium positioning. Its "walled garden" ecosystem of devices, proprietary software (iOS), and services creates high switching costs and network effects, keeping users locked in and developers committed.

The result is extraordinary customer loyalty – iPhone retention rates hover around 92% – indicating that once consumers enter Apple’s ecosystem, they rarely leave. Apple also benefits from scale advantages in procurement and economies of scale in R&D and marketing that new entrants cannot easily match.

Taken together, these factors give Apple a durable, wide economic moat that should sustain for many years.