Not anymore with their latest models. You are required to have a Protect NVR and account before they’ll let you use standalone mode, and, apparently some new models disable it entirely.
Check out the UniFi subreddit for details.
Very disappointed, as that was my go to brand for standalone IP cameras.
So disappointing. I can finally afford to buy all the Ubiquiti equipment I wanted in the past but no longer want to buy it. I went TP-Link Omada for my APs and have been satisfied.
I bought a TP-Link Kasa smart outlet to power cycle my modem in the basement. I couldn't get the open source Python utility to activate it so I relented and set it up via the official app. The account creation explicitly has a marketing opt-out that they promptly ignored. They have also ignored all my unsubscribe attempts from their spam. I'd recommend avoiding them.
Check out the UniFi subreddit for details.
Very disappointed, as that was my go to brand for standalone IP cameras.