MIWIFI by Xiaomi - Wifi router beta with a twist: you build it yourself
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
Wifi Porter - Connect guests to your network quickly
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.
Velop - Whole-home mesh Wi-Fi by Linksys
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.