I am glad someone is playing!
Yes, there were GPS spoofing applications, you need to root your phone, but Niantic started banning these, and making illegitimately obtained Pokemon useless for battle
Cheating can get you banned, which is why I don't indulge in it. iMore usually has the latest tips and tricks for Pokemon Go, the ones that are ahead of the curve and do not get banned... yet
You can catch the July edition of tips and tricks here
It's fun, finding Pokemon makes you go to places in the city