Yes, it is possible to work with Squirrly without using Google Analytics and/or Google Search Console.
However, those integrations are necessary if you want to use Squirrly SEO at its full potential. We use those to show you complete reports for Focus Pages and complete Audits. For example, if you don’t connect GA, we won’t be able to show you data regarding the traffic your pages receive.
So, while we absolutely recommend enabling Squirrly’s connection to Google Analytics and Google Search Console, it’s NOT a requirement to using Squirrly.