The WordPress Development Retainer plan is a flexible plan to help you improve and update your website on a regular basis and align it with marketing campaigns. On the other hand, a Maintenance plan is more like a routine software update to keep your WordPress technology up to date, secure and running smoothly without any issues.
If you would like to update your website with new information, add new pages, run ads with landing pages or add new features from time to time, you need the WordPress Retainer Plan.
However, if you are just looking for someone to keep an eye on the website and make sure it’s running smoothly without issues, the WordPress Maintenance Plan is the right choice.