Reddit - Reddit gives you the best of the internet in one place. Get a constantly updating feed of breaking news, fun stories, pics, memes, and videos just for you.
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
Pixfuture - Pixfuture is a self serve advertisement platform for advertisers and publishers.
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.
Contextly - Contextly provides content recommendation system for publishers.
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.