GoHenry - Money Missions - GoHenry gives families the tools they need to nurture financially healthy kids: a debit card & app, now with gamified Money Missions.
NumWorks - The graphing calculator that makes learning math easier.
DipJar - Tip jar reinvented for credit cards
Learney - Knowledge aggregator for developers
Manta Math - A beautifully simple game to help kids memorize math facts
eMathHelp.net - Site is created to help people learn math. Includes algebra, calculus, differential equation calculators and notes with many examples.