Yes. Paprika 3 stores its data in a different location than Paprika 2. Once you've verified your data has synced over to the new version, you can safely delete the old version.
I've upgraded to Paprika 3, can I delete the old version now?
Yes. Paprika 3 stores its data in a different location than Paprika 2. Once you've verified your data has synced over to the new version, you can safely delete the old version.