gym

Q: My partner and I are planning on launching a mobile app for health conscious people. In the app, people will be able to review and rate healthy restaurants, gyms, sports gear, supplements, etc. Our revenue will mainly be through advertising for healthy restaurants, gyms and sports brands, etc. Some of the gyms here use music during workouts and some of them have male and female customers, even if both genders are not training in the same area or at the same time. We are not opening a gym, but we are providing a platform where people can review gyms in terms of quality, trainers, equipment, etc. and our revenue would partly come from gyms through them advertising on our app. Is this permissible?

Q: I am a 14 year old boy. I want to know if it is permissible for me to go to the gym at times where there is like nobody and trying the best I can to avoid people if there was any, and most people who go are men. For example, on Wednesdays, I go to the gym directly after school at 15:00 and finish my traing before 16:30 (It's when most people start going to the gym). I know that it is impermissible to go to places where there is fitnah. But is this permissible for me?

Q:

1. Going to gym a where music is played. Is it allowed if i am going only to be fit?

2. What are the methods in Islam to loose weight or stay fit?

Q: Is it haaram to go to the gym?