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TrueNorth Labs
Notes on the products we build: what they do, how to use them, and the decisions behind them.
Smart Calculator
From scientific math to adding up the numbers in a photo and country-specific pay and tax tools, all in one app. Here is what Smart Calculator does, and why it keeps your data on your device.
StockFit
333 investing terms in plain words, 156 of them drawn as figures, plus a screenshot lookup, an averaging calculator and 11,972 Japanese and US stocks. Here is what StockFit does and what it deliberately does not do.