For digital assets subscriptions most people are using Membership Plugins. There are free membership plugins and commercial membership plugins, and the ones IMO with the most traction (i.e. users and support) seem to be the commercial plugins.
List of Membership and Content Protection Plugins
Here are a list of membership plugins that I’ve found from my past research. Not all provide
subscriptions to digital assets but most do. I’ve included the full list for others who might be interested in the full list of membership plugins. (I’ve created my answer as a community wiki if anyone wants to help segment the ones that provide digital asset protection and download from those that do not.):
In alphabetic order:
- Digital Access Pass
- EasyPayPal WordPress Plugin
- HidePost
- Magic Members
- Member Access
- Members Only
- MemberWing
- PostLevels
- Role Scoper
- Suma Plugin
- User Access Manager
- Wishlist Member
- WordPress eMember
- WordPress Membership Management Plugin
- WP Member Site
- WP Sentry
- WP User Manager
- YourMembers
I know that’s not many options, but maybe it’s enough? 😉
Membership Plugin Articles
And here are a few articles you might find helpful:
- How to Use WordPress as a Membership Directory
- Build a WordPress Membership Site with Wishlist Member
Hope it helps.