Works This is what I needed. Allows to select the amount of subnets you need. Only reason I don't give out 5 stars is the ui is ugly, but I can actually live with that. 5 star if the bug with rotating screen is fixed. At the moment rotating screen orientation resets to default values.
Superb! For being free it does all that I need
Simple design with the right information
Simple Subnet Calculator crashes on samsun gallaxy S III
Superb subnet calculator. 5 star
Itsnice Love this app
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