TextNow - TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.
Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
AppsGeyser - Appsgeyser is the easiest to use DIY native mobile app creation platform.