Hello everyone,
I am James and I and my friends are trying to play and perform some songs. The problem is that we sometimes out of Sync and we can’t conveniently play together. Please suggest me any good musical software having extremely friendly interference so we can practice in a convenient and effective way.

it sounds to me like you all need to get better at playing music but what are your plans? All you need is just lots of practice to solve that problem otherwise Sync problem is pretty grave

Keep practicing. Learning is, or taking lessons to improve your musical ability. it sounds to me like you all need to get better at playing music. And try