Keep in mind, however, that when you sign up you get a 14 day free trial of the Zapier Professional plan.
If you're looking to get Zapier for cheaper, here are you limited options:
With all their plans, you get a signifcant discount if you pay yearly.
Zapier has always done its best to support non-profit companies, and if you have a US-based one, you can get 15% off any plan.
Make sure you have your 501(c)(3) letter handy, sign up to Zapier, then fill in this form.