Can I use this for personal use?

I asked the same question! I was told that you *can* link a personal email, like a Gmail account, but your corporate policy might prohibit that. I was advised against doing so. You could likely pay the Starter subscription for one license and have yourself a personal version of the platform, I'd ask their website chat bubble though to be sure. I'd love it if they came out with a free-limited feature / paid full feature (minus business functions) version for personal use.