Hewlett Packard - HPxx Series Emulators
| Name | Description |
| Emu28 | HP 18C/28C Relatively feature-complete. |
| Emu48 | HP 38/39/40/48/49 Relatively feature-complete. The first download includes KML scripts, the Service Pack is an upgrade. |
| Free42 | Free42, a cross platform emulator, is a complete re-implementation of the HP-42S calculator and the HP-82240 printer. Free42 was written from scratch, without using any HP code. You do not need any ROM images in order to use it, yet it is fully HP-42S compatible. |
| HP 12c Emu | HP 12c No documentation, but it appears to do a satisfactory job. |
| HP 49g | HP 49g An official release directly from Hewlett-Packard. |
| HP15c | An HP 15c Calculator emulator. |
| Sim41 | HP 41c Mediocre graphics, but it is functionally decent. |
| TTCalc | HP 41c With much-improved graphics, and feature-equivalence, this is the better choice for 41c emulation. |
Hewlett Packard - HPxx Series Emulators on Other Platforms
Linux (4)Macintosh (3)
Palm OS (1)
Pocket PC (1)
iOS (iPhone/iPod Touch) (2)