Astra by Cesbo - Talk to Alexa anywhere, from your iPhone
Alexa Skill Kit - Effortless Alexa Skill development with AWS Lambda
Lexi - Speak to Alexa through your iPhone
Jovo - 🗣 Build cross-platform apps for Alexa and Google Home
InfluVoice - Create Alexa briefings straight out of your pocket 🗣️
Voiceflow - Build voice apps in your browser without coding