Higson.io - Hyperon is a BRMS, that was created with very large decisions and hyper-performance in mind. It stands out with the concept of the business domain which organizes the whole configuration in easy to manage way.
DoDone for G Suite - Dead simple project managment with digital post-its. A no frills project management tool which enables you to oversee all of your shared and individual tasks in one place! #clean #lean #collaborative. Built on Google Drive
OptaPlanner - Mathematical optimization software
BP Simulator for G Suite - Business process simulations modeling tool
Simple Rule Engine - DotNet simple BRMS XML rule engine
Mail Merge for G Suite - Create your mail template as a draft in Gmail and merge it with your Sheet data. You can use this syntax: {{Column Header}}