Thanks, could you please provide me a link to download this apk ?

HS :
It is great to find someone who use f-stop + ds cloud.
I don’t find any other solution to have a real bidir sync between my Synology nas and my phone. I can tag photo from the nas, from picasa (linked to nas) and from f-stop and everything is shared.
New DSM 7.x kill ds cloud and there is no other way to do this. I don’t understand how other people deal with their photo.