So apparantly Prequel has had just about 193 updates (give or take, I might have miscounted a couple) since it started back in March 12th of 2011.
So that's 193 updates in 2 years, 3 months and 12 days (or 835 days).
Meaning that Prequel, on average, updates once every 4.32 days. Which isn't too bad, I suppose.
I know other webcomics that take much longer to update.