Syncing Invoice Ninja and Formstack is currently on our roadmap
Invoice Ninja is a free, open-source solution for invoicing & billing customers. With Invoice Ninja, users can easily create and send professional invoices from any internet-enabled device. Clients can print invoices or download them as pdf files as well as pay online from within the system.
Formstack is a versatile online form builder that enables you to build and design web forms without any coding knowledge. Embed mobile-friendly forms on your website and social media to collect online payments, gather feedback from customers, collect leads for marketing, create automated workflows, and much more.
PieSync is easy to use and helps you build your business by increasing productivity. Our two-way contact integration will decrease data errors and ensure that you and your team will have access to the most up to date customer information.