FitBench

FitBench turns raw measurements into a finished figure in seconds. Paste a table straight from Excel or Numbers, import a CSV, or just snap a photo of a printed or handwritten data table and let on-device text recognition read the numbers for you, no typing, no cleanup, nothing ever leaves your device. FitBench automatically detects the shape of your data and picks a starting model from a full scientific library - Michaelis–Menten, dose–response (4PL/5PL), one- and two-phase decay and association, Gaussian and other peaks, sigmoidal growth, linear and polynomial, or your own custom equation - and fits it instantly, with no initial guesses required. Drop in up to seven Y columns against one shared X and fit them all at once, each with its own model, overlaid on a single colour-coded graph with a side-by-side table comparing every fit's parameters. Every result comes with a plain-language verdict and real statistics - R², AICc/BIC, RMSE, residual checks, and each parameter with its standard error and 95% confidence interval - so you can tell when a high R² is quietly hiding a bad fit. Fine-tune with weighting, robust fitting that flags outliers automatically, fixed parameters and bounds, log axes, error bars, and column transforms with custom formulas. When you're done, export a publication-ready figure as PNG, vector SVG, PDF, or CSV - complete with a ready-to-paste methods sentence — and save unlimited projects. Powerful enough for the lab, simple enough that your first great fit is completely free. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/