Fly.Io Charges

Not a big deal, but curious with 1 VM/1SQL/3gig storage on ‘free’ plan it charges X cents (currently 3) every so many days?

136 GB/hr × Volume: SSD Storage (at $0.0002083333 / month)

not that 3 cents is a big deal, but curious what the 3 cent charge is covering thanks :slight_smile: