Emma
Emma is an email marketing platform that makes it easy for your team to collaborate on all your campaigns. Emma helps you deliver a unique brand experience by perfecting the customer experience with your emails.
When you integrate forms.app and Emma via Zapier, you can create an event, register new subscribers, and add them to your groups to automate your workflow.
You might also like

FogBugz
Define a project and share it with your entire team via email.Zapier

Google Tag Manager
Google Tag Manager is a tool that allows users to add tags to websites without changing the existing codes.
nTask
It's easier than ever to focus on your goals and objectives.Zapier

Virtuous
Create dynamic donor relationships.Zapier