View and annotate PDFs with notes, highlights, underlines, and strikeouts. Find text and bookmark pages. Convert images to PDF, scan documents, fill and sign forms. Share files and add signatures to documents.
The app teaches children to read and spell 200 one-syllable words through 42 rhyming stories. It provides audio versions of each story and reinforces skills with games.
Simulate particle interactions with adjustable parameters. Observe complex patterns emerging from simple rules. Explore bionic systems through visual dynamics. Analyze group behavior in natural and artificial environments.
Create touch-optimized mobile web apps for iPhone and iPad without signing up. Edit apps once for automatic support on both devices. Host apps on personal web hosting and upload via FTP.
