Thinkific is an online course creation platform that offers a solid free plan to get you started, plus plenty of advanced features to support you as your online course business grows.
Pricing info:
Teach Online with the #1 Platform for Online Courses: Thinkific Pricing
API info:
Affiliate info:
Email marketing is available through integrations with third-party apps:
Create Automated Email Workflows with Thinkific Apps
Payment plan info:
Create a Payment Plan for Your Product
Upsells info:
Zapier info:
PayPal info:
Apple Pay and Google Pay info: