Apple has blocked US users from downloading ByteDance's Chinese apps, marking a significant expansion of the company's geofencing capabilities. The restriction comes after Apple implemented a new system called "countryd" that uses GPS data, Wi-Fi router information, and SIM card details to determine a user's physical location with greater precision. This technology was initially developed to comply with the EU's Digital Markets Act.

Apple's geoblocking system allows the company to restrict app availability based on geographic location, similar to how it limits alternative app stores to EU residents. The company can withdraw access if a device detects an EU resident leaving the region for more than 90 months. While Apple has used IP addresses to approximate locations since 2025, the ByteDance restriction represents one of the first major implementations of this more sophisticated location-tracking technology.

The move raises concerns about digital sovereignty and user freedom. As Apple refines its ability to block apps that cannot be easily circumvented with VPNs, users in restricted regions may face increasingly limited access to certain applications. This development could set a precedent for how tech companies enforce regional restrictions and comply with government demands in the future.