Order a Sumdog subscription

We accept purchase orders, as well as card payments.

If you would like to order by purchase order, please send via email (hello@sumdog.com) or fax (877-293-1214).

Purchase orders should be addressed to:

Sumdog Inc
902 Broadway, 6th Floor
NY 10010

Once we receive the purchase order we will activate your subscription. You will then be sent a 30-day invoice.

If you would prefer to buy using a credit card, give us a call or visit our automated payments page.

Standard pricing for 1 class for 12 months:

  • Sumdog Math: $195
  • Sumdog Spelling and Grammar: $195
  • Sumdog Math & Spelling and Grammar: $290

Pricing for whole grade & school subscriptions can be obtained by requesting a quote here.

Any questions? Call 877-978-6364 – we’ll be happy to help.