Keto diet??? PCOS


I was recently diagnosed with PCOS and have a huge desire to lose that extra weight I’m carrying (25-30 lbs) has anyone on here tried Keto?? Is there a Keto app so I can log my foods?? The website has a $54 deal today for the whole Keto package and thinking I should jump on it. I really need a diet that is lauded out point blank for me.