We don’t store your data, period.
We physically can’t. We have nowhere to store it. We don’t even have a server database to store it.
That’s why, with Send to SD card, what happens on your Android device stays on your device.
The permissions you grant when your install Send to SD card are used for the following.
Note, in any case the sensitive data moves only inside your device or to file storages available for your device.
When you press Donate button, a financial transaction is initiated with Google Play Store. Send to SD card only initiates such transaction and receives it's results. Some sensitive data in this case is processed only by Android system and Google servers. Check their Privacy Notice for details.