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Payments & Security

I use Outseta (who in turn uses Stripe) to process subscription payments and to handle your logins, account management, etc. I use them because I know enough to stay in my lane and let the experts handle your credit cards.

Teacher-Friendly Pricing Plans

For long time users of the site, it might be a bit surprising to see this page. The low-key donation model I used for years certainly felt good to offer, and I’m grateful to all who gave. But to spend the time needed to make this site the best it can be, I need more than the donations were providing.

Keeping the “Free” in GraphFree

I know that not every teacher can afford to pay, and I don’t want anyone to be shut out entirely. That’s why even the free tier still gets all of the graph types and lasts as long as you need it.

Yes, you can upgrade or downgrade later.

Yes, I’ll reward you if you donated to the old site.

Subscriptions auto-renew, but yes, cancelling is easy.

Free

Use all graph & grid types

Use all 40+ built-in functions

Contains ads

Delayed downloading and copying

Educational use only.

Standard ($15/year)

Use all graph & grid types

Use all 40+ built-in functions

Ad-Free

Immediate downloading and copying

Commercial Use Allowed

Sign Up Now

Boost ($25/year)

Use all graph & grid types

Use all 40+ built-in functions

Ad-Free

Immediate downloading and copying

Save favorite grid settings

Save favorite plot styles

Use custom font for graph texts

Customize available colors, line widths, etc.

Commercial Use Allowed

Sign Up Now