Upon registering with 500px, all new users are given a free, two week trial with our Pro subscription. This allows new users to test out some of our premium features, such as Pro Profiles, before committing to a paid subscription!
Once the trial expires, users are given the option of sticking with a Basic (free) account or upgrading to a premium account. Users can change their subscription at anytime by visiting our Upgrades page.
Users can also locate their account's subscription status by visiting their Settings page.