Select your preferred service (Facebook, Google, or Apple) and follow the prompts to log in. Manual Backup Methods (Advanced)
If you prefer not to use cloud services or want an extra layer of security, you can manually back up your files. How can I save my progress? — Angry Birds 2 Help Center angry birds 2 save data free
Linking to Facebook is the best option for cross-platform play, allowing you to sync data between Android and iOS. Select your preferred service (Facebook, Google, or Apple)