Description: MIT App Inventor is a visual programming tool that allows anyone to build fully functional apps for Android devices. It uses a building blocks interface that enables dragging, dropping and configuring app components without writing code.
Type: software
Pricing: Open Source
Description: PDF Annotator is a PDF viewer and editor that allows users to add annotations like text comments, highlights, shapes, and drawings to PDF files. It has basic PDF editing features to rearrange or delete pages.
Type: software