Ola is an indian cab booking app.I have used this app several times and have both good and bad experience.Once I booked the cab.when the cab arrives the driver ask money in advance that the app told as an estimated price.He argued with me a lot and tooks the long way.My destination was aronud 100m away but he told me that they have to follow the route instructed by the app. I have filled the complaint but no one listened to my complaint.But ither experience were nice and the referral code given by them provide extra duscount to me which makes the cab more cheaper