Most of the people worth hiring were already in front of you once. A pool keeps everyone you've searched, sourced or screened, and re-reads them against each new role instead of making you start from an empty box every time.
A pool holds many searches, so it grows as you keep looking rather than being one frozen list.
Describe who you're after and the results go into the pool. Run another search next week and it joins the same pool rather than replacing it.
Someone found through two different routes is recognised and merged, so a pool doesn't slowly fill with copies of the same handful of people.
Point a pool at a role, or just at a description of who you want, and everyone in it gets read against that and scored, with the reasoning attached.
Pick the people worth approaching and put them straight into a reachout flow, which stops the moment any of them replies.
It's yours, and it stays yours.
Who you've found and who you've approached belongs to your team. It isn't pooled with anyone else using the product.
A pool does not need a job attached.
You can build one for a role you expect to open rather than one you've already posted, then score it against the real job later.
Someone who asked to be forgotten is gone, and stays gone.
Erasure removes them from your pools and blocks them from being sourced back in by a later search, which is the part that's easy to get wrong.
Free to try. No credit card, and no credit spent until you ask for work.