Ionic Framework - A front-end SDK to develop applications with HTML5 , CSS3 and JavaScript.
Voiceflow - Build voice apps in your browser without coding
Flutter.dev - Build beautiful native apps in record time 🚀
Alexa Skill Kit - Effortless Alexa Skill development with AWS Lambda
React Native - A framework for building native apps with React
API to bot - Convert your API to Alexa skill or Google Home app in 5 mins