PortableApps.com - Portable software for USB, portable, and cloud drives
PDFgear - Free PDF Editor Software & Online tools
Edit PDF online or offline with PDFgear's free tools and software. Merge, split, convert, and more. Powerful and user-friendly solutions for all your PDF needs.
AlternativeTo
The best Ixl alternatives are Khan Academy, Brilliant.org and Pocket Scholar. Our crowd-sourced lists contains more than 10 apps similar to Ixl for Online / Web-based, iPad, Android, iPhone and more.