It's $18 for the year now. I am planning to subscribe again in April, so I will have access for my March trip next year (2022). Even without a subscription, I can access so much and can even make customized plans and optimization, so I have already done some preliminary trip planning. I like the proprietary plans, lines app, and crowd calendar with updates that I'll need to subscribe to, to get. I love it how they keep up to date on everything that is changing.
I join just those years when I am doing a WDW trip (which seems to be pretty often lol). It's not like those apps where you have to unsubscribe etc. (breath of fresh air).