Do you pay for an account on a month-by-month basis?

Yes, Jotform is a subscription service so you can pay for a subscription in Jotform on a month-by-month basis. If you like, you can also pay on a yearly basis or bi-yearly basis instead.

To upgrade your account and choose your preferred payment schedule, please follow this guide: How to Upgrade My Account.

If you need further assistance, please let us know.
Regards.