Did you mean: Picasso?

Picasa icon

Picasa 3.9.137.81

google.picasa.picasa
Software for Windows

Picasa icon

Picasa 3.9.16.37

com.google.picasa
Software for Mac

Picasa Photo Viewer icon

Picasa Photo Viewer 3.9.137.81

google.picasa-photo-viewer.googlephotoviewer
Software for Windows