Use a Facebook connection. This is the only official way to sync progress between an Android device and an iPhone or iPad.
Angry Birds 2 Save File Guide: Locations and Syncing Progress angry birds 2 save file top
The most reliable way to secure your data is through cloud syncing. Unlike manual file transfers, this method is officially supported and protects you against device failure or accidental app deletion. Use a Facebook connection
For players who want a physical copy of their "save file top" progress, follow these steps: How can I save my progress? — Angry Birds 2 Help Center Unlike manual file transfers, this method is officially
/Android/data/com.rovio.baba/files/save/ Note: "com.rovio.baba" is the package name for Angry Birds 2.
If you prefer manual backups or are using a file explorer, you can find the local save data in specific directories depending on your platform.