Wassenger - WhatsApp API made simple for developers and businesses
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
Voiceflow - Build voice apps in your browser without coding
zeroqode - Build your app up to 10x faster with no-code app templates
Picky Assist - Your Andriod Phone As A Gateway to Automate WhatsApp, SMS & Calls
Codefreebnb - Airbnb clone. Written with not one line of code