The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Yunhe Shi:
The app allows you to browse and manage photos from Picasa, SmugMug, 500px, DeviantART, Instagram, ipernity and Flickr.Picasa Features- Multiple authorised account support - View your Picasa web albums - View your favorite accounts' shared web albums - View Picasa featured photos - View album photos on map view - View a photo owner's public albums - Add/Remove a photo owner to/from a public account list - View comments of a photo / add comments to a photo - Search geo-tagged Picasa community photos - Show a geo-tagged photo's map location - View a album photo Exif info if available - Show recently uploaded community photos - Share an album+ Create a new album and delete an existing album (Pro Only)+ Batch upload photos to an album (Pro Only)+ Update existing photos' captions (Pro Only)+ Remove photos from an album (Pro Only)+ Edit an album's properties (titile and access) (Pro Only)+ Add photo tags to a photo (Pro Only)+ Batch add tags to photos (Pro Only)+ Move photos to a different album (Pro Only)SmugMug Features- Upload photos and videos to an existing or new gallery - Edit/delete an existing gallery (Pro Only)- Remove photos from an existing gallery - Edit an existing photo's meta info - View galleries of your friends, family and fans - Manage your friends and family - View all-time popular photos - View today's popular photos - View popular photos in a SmugMug category - View public geo-tagged photos - View the galleries of a public photo - Add a SmugMug user as friend or family - View/make comment of a photo - View a photo's meta info - View a photo's location on map if geo-location is available - Photo/video download (Pro Only)- Collect a photo into your galleries - Sharegroups support -- Add, edit and delete a sharegroup -- Add and remove an album to/from a sharegroup -- Share your sharegroups-- Add your friends' sharegroups by using sharegroup tag & password -- Add your friends' sharegroups directly from email shared by the app 500px Features - Follow/unfollow a photo owner - View a user's friend list - View a user's blogs - Fullscreen photo feature ** view a photo's comment and make a comment** Add/remove a photo from favorites ** Vote(Like) a photo ** View a photo's location if available ** View a photo owner's photo stream, friends's photos and favorites - User-based features ** View friend list and friends' photos ** View your follower list ** View your photo streams ** Upload photos ** View your favorite photos ** View your friends' photos *** View Collections (Portfolio & Profile Sets) DeviantART Features- Browse deviations by categories, popularity (all time, 8 hours, 24 hours, 3days, 7 days, 1 month) and time(newest first) - Bookmark category browsing state (category path, sorting order and time period) so that you can restore the state quickly - Browse daily deviations + View a deviation owner's deviations (Pro only) + View a deviation owner's favourite deviations (Pro Only) + Search deviations by keywords(Pro Only) + Share a deviant (Pro Only) - Download an image deviation - Add/remove a deviation to/from favorites + Add/remove a deviant to/from favorites (Pro Only) Common Features- Share a photo via email & Google+ & Facebook & Twitter & SinaWeibo (iOS 6.0 or higher) - slideshow photos -- pacing control -- sequential or random control (Pro Only)-- show/hide photo caption & photo owner name control -- external display slideshow (Pro only) *****The app is not developed by Google, Smugmug, 500px, DeviantART, Instagram, ipernity or Flickr