Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
dotPeek - dotPeek is a free tool based on ReSharper. It can reliably decompile any . NET assembly into C# or IL code. Download dotPeekCommunity. Materials Newsletters, webinars.
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.
dnSpy - .NET assembly editor, decompiler, and debugger
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.
Java Decompiler - Yet another fast Java decompiler