Third Party Vendors

(updated November 15, 2019)

In order to provide users with the ZipGrade service, we utilize a number of third party service vendors as defined in our Privacy Policy.

This list includes the providers we utilize, what information may be shared with them to provide specific features of the service, and links to their privacy policy.

Party Name


Data Disclosed

Privacy Information

Payment Processor

Stripe, Inc.

Credit card processor for website

E-mail, address, credit card information

Quaderno / Recrea Systems, SLU

VAT/Sales Tax Reporting

E-mail, address, credit card information billing address

Cloud Hosting

Amazon Web Services, Inc.

Hosting of servers for web site and database servers

Encrypted forms of:

  • E-mail, hashed password, subscription data
  • Quiz, paper, student, tag, paper image, and class data (if synced)
  • Backups and log files

Crash/Beta Reporting

Fabric/Google LLC

Crash Reporting for mobile application and beta user management

ZipGrade log files for application crashes and application errors, email address of beta users, device information

Apple Inc.

TestFlight beta management

E-mail address, crash logs for beta users


SendGrid, Inc.

Outbound transactional e-mail (account expiration, password reset, etc).

E-mail, name, transactional emails


ZenDesk, Inc.

Inbound support emails, support ticket management

E-mail address, support E-mails