E-goi - Email Marketing companies, SMS Marketing, software email marketing.
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
Octopush - Octopush is a company providing technology-based communication solutions, including SMS, Web solutions, and Email APIs.
MIT App Inventor - App Inventor is a cloud-based tool, which means you can create apps for phones or tablets right in your web browser.
Maytapi - Serverless Whatsapp Api with Chat and Agent support.
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.