Check the Server Reference Manual (in QlikView version 10 is under C:\Program Files\QlikView\Documentation) section 19.7 Editions of QlikView Server. You will find in the table there that all editions of QlikView Server allow both mobile and Ajax (which is used fo browsers irrespective the device is mobile or desktop, as well as the "Universal Touch Client" builtin and specially developed for tablet devices). Check if you have version 11 the same Server Reference Manual section 16 under C:\Users\All Users\QlikTech\QlikView Server Documentation).
Anyway, review your deployment with your partner or QlikTech sales rep in order to get the most adequate license for your requirements.
Hope that helps.