To upload photos/videos to FamilyAlbum, open the app, tap the "Add" icon at the bottom of the screen, then select the photos/videos you'd like to upload.
Album Admins (parent members) of an album have the option of allowing other Album Members upload to their album. If you'd like to allow grandparents and other relatives upload to your album, visit the Settings tab and set "Allow Members to Upload" to ON.
With FamilyAlbum Premium, you also have the option of uploading photos and videos from your computer. Please note that only Album Admins can register an album for Premium. Once one Album Admin registers an album for Premium, everyone in the album gets access to Premium features. You can learn more about FamilyAlbum Premium here.