Ballerina is described as 'is a general purpose programming language that is optimized for integration work, coupled with the WSO2 Integration Cloud it can be used to create API mashups with ease'. There are four alternatives to Ballerina for a variety of platforms, including iPhone, Android, Mac, Online / Web-based and iPad. The best alternative is IFTTT, which is free. Other great apps like Ballerina are Microsoft Flow (Freemium), Siri Shortcuts (Free) and Syndesis (Free, Open Source).
Automate tasks by integrating your favorite apps with Microsoft Flow. Make repetitive tasks easy with workflow automation. The free tier offers 750 runs per month, unlimited flow creation, 15-minute checks.
Siri Shortcuts deliver a quick way to get things done with your apps with just a tap or by asking Siri. The Shortcuts app enables you to create personal shortcuts with multiple steps from your favorite apps.