Yes. The free plan includes a starter credit allowance, enough to build your first plan. No credit card required.
Launch includes a monthly credit allowance for building week to week. Growth includes a much larger allowance, sized for daily use.
Credits measure how much AI work you use. Each plan includes an allowance. You can buy extra credits at any time, paid plans buy them at a discount, and extra credits never expire.
Launch costs $300 a year and Growth costs $1,000 a year. That saves $300 and $1,400 compared with paying monthly.
Yes. Cancel from the billing portal in Settings. You keep paid access until the end of the period you've paid for, and you aren't charged again. Fees aren't refunded except where the law requires it.