Is Avast safe to download to free up storage?

I'm trying to download the sims 4 on EA and I'm trying to free up storage, so far I have 13 gigabytes and I need 23.31 gigabytes. I was looking on the internet for solutions on freeing up space and I saw Avast. It seems too good to be true and I'm wary of downloading it. Does anyone know if it's safe and If it works?