Ratios

In "linear" mode, Ratios multiplies an inbound CV signal by a whole number between 1 and 20 inclusive, then divides it by a whole number between 1 and 20 inclusive, sending the result to the output jack. In "exponential" mode, it does the same thing but on the log2 exponential scale used by frequency controls.

That's it! It's useful, and it's free.