Both free versions delete revisions and spam. Only one shows you which plugin left which tables, options and cron jobs behind, for free. Where Database Cleaner wins, where the other one is fine, and the prices.
How to run WP-Cron manually, and how to make it reliable
How to trigger WP-Cron by hand when you need it, and how to make it run reliably on its own with a real server cron.
How to: Make WordPress Faster & Optimize It
WordPress is slow when you ask it to do too many things at once. The honest 2026 playbook: fewer plugins, a real host, modern PHP, two cleanup tools, and why caching plugins usually cause more trouble than they solve.