If you want to save searches or use Delta, a free account (email registration) is required.

that includes many premium functions, after which the account is downgraded to a standard "Free" account. Academia Program : Students and faculty can get limited free access

Most users ignore the search mode. For free users, this is the most valuable feature.

If you sign up using a recognized university email address (e.g., ending in

Intelligence X ( ) offers a tiered free access model designed for basic OSINT (Open Source Intelligence) tasks, research, and academia. While the primary search engine and data archive are targeted toward enterprises, individual users can leverage several free features for data leak monitoring and reconnaissance. Free Access Tiers