Digital
Logisim
BOOLR
CircuitVerse.org
Wired Logic
Logisim Evolution
Hradla
Direct Mail
ePrint
Printer Pro
QZ Tray
HP Smart
ezeep
Air Sharing
CalPrint
PrintNode
Digital
ePrintLogisim - Logisim is an educational tool for designing and simulating digital logic circuits.
Printer Pro - Print attachments, receipts, documents, web pages from your iPad and iPhone.
BOOLR - Open-source digital logic simulator
QZ Tray - Print raw (ZPL, ESC/P, FGL), HTML, PDF as well as communicate with USB, HID, and serial devices...
CircuitVerse.org - CircuitVerse is an online community driven platform to design and simulate digital logic circuits.
HP Smart - HP Smart app comes up with features to help you in scanning all the important paperwork using your phoneโs camera and connect the device to an HP printer to print the documents on paper.