Prices vary from place to place, depending on which city you are in, first-line or second-line. However, in most gyms, it is not expensive to apply for a card, but it is expensive to hire a personal trainer. If you know, get a card and practice by yourself. If you don't know, you have to pay for private education. Generally, private education costs tens or hundreds of dollars a class, depending on the level. . If you don't know how to keep fit and get a card, and you want the coach to teach you for free, then I'll tell you, the coach won't talk to you.