Avast Free , update interval

I asked sometihng like this before but im not sure about this ,

In Avast Free , the maximum update interval is 120 minutes right ?

But why is it set at 240 minutes at default ?

And in paid version of Avast , is it also 120 minutes max ?

But why is it set at 240 minutes at default ?
Normal VPS release is two times a day.....more if needed....and sometimes there are none so checking for updates every 4 hour should be enough.....and it also check after every boot

ok but if u set it at 120 minutes , will it check every 120 minutes for updates ?

yes…it checks at startup and then every 120 min if not turned off

While it’s theoretically possible to have two updates within a 120 min. period, it’s pretty uncommon with Avast. I suspect that’s why it’s not the default. Avast simply doesn’t update that often. You can set it to that, but you won’t really be any better off.