You can sign up for a Flickr app or upload individual pictures to your account from your device. I have the app and it wants to upload all my photos. I dont want all my photos on the Flickr site so I use the website to upload a few pictures I want to upload for posting on forums. I previously used photobucket till they started charging a monthly fee.
Here is a link if you want to set up an account on the web site or you can download the app from the app store.
https://www.flickr.com/
Here is a link if you want to set up an account on the web site or you can download the app from the app store.
https://www.flickr.com/

