We offer the following 3rd party integrations with your free account;

We offer Google Calendar API and Google Drive API and MailChimp integrations for all accounts.
For Stripe we offer full integration at the lowest industry e-commerce rates; 2.2% plus $0.30 per transaction for fundraising (American Express rate is 3.5%). We also offer QuickBooks integration and the option to accept Bitcoin.

More to come including;