Terms

Last updated 30 August 2026.

The product

FactKit Unlimited is a subscription that lets you generate unique printable multiplication drill PDFs in the browser. Price is $19 USD per year, billed by Stripe. There are no purchase orders, invoices, or district billing.

License

You may print the PDFs for your own household or one classroom. You may not sell the PDFs, include them in a paid pack, or post them as a public download. Each page is watermarked with the subscriber email. That mark is part of the license, not decoration.

Accounts

Access follows the Stripe subscription. If the subscription is canceled or unpaid, the generator stops until you pay again. You can manage or cancel in the Stripe billing portal.

Acceptable use

Do not share your login link. Do not hammer the generator. We rate-limit downloads so a leaked link cannot knock the server over.

No student data

This is not a gradebook and not a student information system. Do not type student personal data into the site. We do not want it.

Warranty

The generator is provided as-is. If a print job fails, try again. If Stripe charges you in error, write hello@bumblly.com and we will sort it out.