Planet Fitness is a fitness center in Middletown, Delaware. Make yourself comfy. Because we’re Judgement Free. It doesn’t matter if your legs have never seen a squat machine before. We believe how you work out is totally up to you. Take advantage of our unlimited fitness training programs or just do your own thing on the treadmill, we’ll cheer you on either way - if you’re in our house you deserve a little cred just for being here.