These are premium extensions of free, open source WordPress plugins that you can buy. They work just like any WordPress plugin, the only requirement is to have free parent plugin activated.

When you finish your order, you will get dowload link to plugin .zip archive that you can install like a regular plugin, and license key that is necesary in orger to use it and get updates and support.

Please read Terms and Conditions and FAQ before buying.

Simple full HTML page cache for CloudFlare.

Put email in queue and send it one by one, by limits.

Safest and simplest transients garbage collector.