Junk Email Filter - Junk Email Filter is a front end spam filtering and virus blocking service for email servers.
Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
Covideo - Covideo is a Video Email Platform for Businesses that enables companies to communicate quickly and effectively with their customers.
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.
BlueMail - BlueMail is an email management app for Android, iOS, and Windows.
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.