55Photos is described as 'web app that works with Google Photos, Google Drive, Dropbox, VK, Flickr. Using 55Photos you can explore, view, edit, manage, organize, transfer, download, upload, backup online photos and images' and is an website in the Photos & Graphics category. There are more than 10 alternatives to 55Photos, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is DownAlbum, which is free. Other great sites and apps similar to 55Photos are Mylio (Freemium), FlickrSync (Free, Open Source), Bulkr (Freemium) and Free Uploader for Facebook (Free).
Photos and albums transfer between all smartphones brands and/or PCs as well. Inslideshow is an universal "AirDrop" working between all smart-phones brands and PC. You no longer will suffer with complicated synchronizations.
Holy Cow! Download your whole Flickr photostream in ORIGINAL size to your PC! - Easy to use - start backing up in seconds! - Get all of your precious photos back from Flickr in one go. - All photos retrieved in original size. - Saves your photosets as folders.