Map Data

Map Data turns your numbers into maps. Whether you're visualizing population, crime rates, election results, or sales by region, Map Data builds clean, publication-ready choropleth maps from your own data — no design tools, no complicated GIS software. Bring your data, any way you like • Import a CSV file from your device • Load a CSV directly from a URL • Ask AI to generate the data for you — just describe what you want to map, and Map Data queries Anthropic, OpenAI, or Gemini and fills in the values automatically Columns are auto-detected and matched to the right regions, so you spend less time wrangling and more time mapping. Accurate U.S. base maps • All 50 states plus D.C. • All 3,142 counties • A proper Albers USA projection with Alaska and Hawaii insets, so the whole country fits beautifully in one view Style it your way • Multiple color palettes • Quantile, equal-interval, and continuous color scales • Automatic, readable legends Explore interactively • Pinch to zoom and pan smoothly • Tap a region to see its value Export in the format you need • SVG for crisp, infinitely scalable vector graphics • PDF for documents and printing • PNG for slides and sharing • CSV to export the joined data itself Map Data is built entirely in native SwiftUI for iPhone and iPad, with fast, off-thread geometry processing and no third-party tracking. Your API keys are stored securely in the device Keychain and used only for the AI queries you request. Perfect for journalists, researchers, students, analysts, and anyone who needs to see their data on a map. Download Map Data and make your first map today.