EQ-Software can work with two types of PDA: Windows Mobile or Palm OS.

PDA with Windows

Any PDA with Windows Mobile 2003 or later should work. If you want to use cell phones, they must also have a pen (called stylus) to mark on the screen.

An example of the PDA in the market is the "HP iPAQ 11x" . According to the nomenclature of HP, the "x" should be replaced with the language of the region: 1 for English and 6 for Spanish, something like "HP iPAQ 111". The "HP iPAQ 110" refers to the generic model.

Palm OS PDA

Any model with Palm OS 4.0 or higher should work. If it is a cell phone, it must have a stylus to tap on the screen.

Due to the changing decisions of the company Palm Inc. is becoming increasingly difficult to get Palm OS PDAs, as the company has focused on sales of cell phones. In some stores you could still get older models. The Tungsten E2 is an example of these devices.