Gbyte Transfer is a professional cross-platform data migration utility built for cross-system device replacement. It breaks the data isolation between Android and iOS ecosystems. It enables bidirectional one-click migration and transfers media files, contacts, communication records and schedule data. It adopts optimized wireless protocols for stable batch transmission and minimizes connection interruptions during large-volume data transfer. It applies local processing throughout the whole process to guarantee user privacy and data migration integrity. It keeps compatible with newly released mobile hardware and updated operating system versions. It removes cumbersome manual export, conversion and import steps for cross-platform data exchange. It maintains the integrity of most personal data formats during transmission and reduces file corruption risk. It provides a unified standardized migration workflow regardless of transfer direction between Android and iOS, helping users complete data migration smoothly when replacing mobile devices across two different mobile ecosystems.