If I downgrade my plan for a few months, does all my data stay saved?

I don't want to lose my info, but I no longer need the larger package at this time.  

Although the data will not be immediately removed/deleted , it will be later on. This was meant to preserve the storage space resources use by JotForm.

If your account plan is downgraded to lower subscription plan, it means your account allocation usage will be lowered also. This means it will not be able to hold the usage of the previously paid plan.

I recommend you download all your data as well if you intend to lower your subscription plan. By downloading all your data, you will be able to keep them stored offline outside JotForm.

User guide: How-to-export-all-of-your-data-at-once

Let us know if you need further assistance.