SylloGizmo is a logic calculator for finding mood and figure of a classical Aristotelian syllogism. SylloGizmo also verifies the validity of the syllogism and shows the mnemonic, e.g. 'Barbara' or 'Ferio' etc.
NB: such a mnemonic exists for all valid syllogisms, and for most valid only with strengthening premise
Click_trac is a handy and uncomplicated applicacion allowing to count anything you want. Passengers on a plane, children on a field trip, or just daisies in your backyard, useful and useless things, count everything just by touching the screen of your smartphone