How to cancel, pause, or resume my subscription

Account menu → "Plan & billing" → "Cancel subscription" (also under Settings → "Plan"). Before cancelling you can choose "Pause subscription" (1 to 3 months; billing stops, you keep access, it resumes automatically) or keep your plan at $10/month for 3 months (monthly plans). Each offer is available once per subscription. Otherwise click "Continue to cancel", pick a reason, and "Cancel my subscription".

Cancelling takes effect at the end of the current billing period; you keep paid features until then, and your scripts stay on the Free plan. Changed your mind? Plan & billing (and Settings → "Plan") shows "Resume your subscription" until the period ends.

A plan bought inside the phone app is cancelled in Google Play or the App Store, not here; the Plan & billing page says so when that's the case.