I'm Andrew, QuantFit's maker and a macroeconomist. The part I want to show is the workflow: pull World Bank data into the app, explore it with charts, correlations and scatterplots, then estimate a model and inspect diagnostics without moving the dataset between tools.
A practical starting point: choose the countries, indicators and time range for your question; check the series and missing observations; compare relationships visually; then choose an estimator and examine the relevant pre- and post-estimation tests. The method still needs to fit the data and research question.
QuantFit is live for iPhone: https://quantfit.app
For researchers: which step would you most want to see in a worked example data import, exploration, model setup or diagnostics?
QuantFit brings applied econometrics to iPhone and iPad. Import CSV or XLSX files—or pull live data from the World Bank, IMF, Penn World Table and FRED—then run OLS, fixed and random effects, 2SLS, GMM, ARDL, NARDL, PMG, VAR, VECM and more. Inspect diagnostics, simulate policy shocks, and export publication-ready tables, charts, LaTeX, CSV and Excel. The new release turns a phone into a portable research workbench without collecting user data.
