there is something similar to digitech drop tune but cheaper?, there is another solution to change the tuning of the guitar without touching the pegs?

Buying new guitar strings to work with a tuning is cheaper.

 

In fact, I'm not sure why you wouldn't want to turn the pegs.

sorry for my laziness i would just like a quick solution to play songs with different tuning, currently i only play the ones that are tuned in e standard

cfsm can repack songs to E standard/drop D with a pitch shift effect on the tone. 
In the custom mods section you select the pitch shifter.

cfsm can repack songs to E standard/drop D with a pitch shift effect on the tone. 

In the custom mods section you select the pitch shifter.

 

Interesting, I  have a lot of songs in B Standard on bass that are far, far too low for the program to detect, so this is great news. I've not used this program so may be a little fiddly but looks straightforward enough. Thanks,