Picasa keeps updating thumbnails
When I go out of wifi connection, If I try to see the picture I wont be able to because the image which was cached will be deleted and no longer available. Alternatively If there is an option to save the image to sd card in the gallery image viewer, I will save that particular picture to my sd card when I have wifi and view it anytime anywhere. Else, If I can access the cache folder where gallery caches picasa photos, I can copy from there. So now, If I want to download a particular image of mine from picasa, I need to go to internet-picasawebalbums, browse for the same photo I can see in gallery and then download it. It'll probably start doing weird things when web albums become read-only in May.Google has been working on newer photo products for a few years, so I don't think Picasa users will be missing out on anything by switching over.
Please take into account that thumbnail URLs expire after a certain time.The two products can access the same image database.If you don't want to use Google Photos, you will still be able to see and download your existing Picasa web albums along with the associated tags, comments, and captions.Before Google and Google Photos, Picasa was Google's photo sharing and management product.You may not be aware, but it has continued to exist all this time—well, languish may actually be a better term.