Warning:

You can upgrade for free during beta, but beta won't last forever. So, be warned that once beta is over, you will have to pay for datasets, graphs and data columns that go beyond the limits in the free account.

If you decide to downgrade to a Free account, then:

• Nothing will be deleted.
• All of your data and graphs will still be downloadable.

However:

• Only 5 datasets will be editable.
• You won't be able to create more than 5 data columns and 5 graphs per dataset.
  (Any existing graphs and datacolumns beyond this limit will be unchanged and still editable).

For more information, see the FAQ entry on account downgrades.