2006 Pontiac Vibe

I parked my car in the garage this weekend. There was nothing wrong. I went to start it yesterday and it would not turn over. There is a click when I turn my key, and all of my lights come on, but other than that nothing. Some say it could still be the battery, there just isn’t enough juice to turn the car on. Other say it could be the starter. I have someone coming today to try and jump it. What is more likely? I need a quick cheap fix as I am alone & poor. Lol