can I use membership at other planet fitness?

Black Card memberships cost $20, but get other perks such as free massage chair and hydromassage, discounts on drinks at the gym, plus online discounts with a couple companies. One company is Reebok

The black membership is a year long contract requirement with fine print which offers the opportunity to visit other locations. The 1 dollar specials they have mean nothing. They still charge you the 39.00 dollar activation fee after you sign up with the initial 1 dollar activation fee and 20 dollar a month charge.

Only if you are a Black Card member.