What are some alternatives?
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.
Pipefy - The new development platform built for agile teams.
Process Street - Create beautiful rich process documents in a simple to follow checklist format. Fast, free and incredibly simple to use.
Pushwoosh - Push Notifications Service | Your Apps Can Talk!
Microsoft Flow - Similar to IFTTT and Zapier you can create automated tasks based on APIs from various services.