Spin the globe. Tap a country. See its population change from 1960 to 2100.

popcast is an interactive demographic atlas for 159 countries. Drag the globe, tap any country to open its data card, and move the year slider one year at a time to explore how populations have changed and how they may change through the rest of the century.

■ Disclaimer

popcast is an independent, third-party app. It is NOT affiliated with, endorsed by, or sponsored by the United Nations, the World Bank, the government of any country, or any other international or governmental organization. popcast does not provide or represent any government service. All data is used under each provider's public terms of use, with attribution to the original sources listed below.

■ Data sources

Demographic indicators (population, growth rate, fertility, life expectancy, aging share, etc.) are sourced from the United Nations World Population Prospects (medium variant):
https://population.un.org/wpp/

GDP and GDP per capita are sourced from World Bank Open Data:
https://data.worldbank.org/

The current source is also shown at the bottom of each country card inside the app.

■ Key features

• Interactive 3D globe
Spin, zoom, and tilt a smooth 3D Earth. Tap any country to open its profile.

• Six core demographic metrics on a hexagonal radar
- Population
- Nominal GDP
- Annual growth rate
- Aged 65+ share
- GDP per capita
- Total fertility rate

The radar shows a country's demographic shape at a glance: population size, aging, economic scale, fertility, and more — all on one chart.

• Country-versus-country comparison
Pin one country, tap another, and compare them side by side — radar, bars, and every panel update instantly, with consistent colors for each country.

• Year slider, 1 year at a time, 1960 to 2100
Move year by year through past population shifts and forward-looking projections. A subtle marker separates measured history from projected future on the slider, so it's always clear which is which.

• Globe layers
Color the entire planet by Density, Population, Growth, Fertility, Life Expectancy, Aging 65+, or GDP per capita. See at a glance which regions are densest, oldest, fastest growing, or wealthiest.

• Fast search
Find countries by name, or browse by continent, population rank, or A–Z.

■ Who it's for

• Students and teachers in social studies, geography, statistics, and economics
• Anyone curious about how the world's population is changing
• People who enjoy thoughtful data visualization

■ App highlights

• Works offline — demographic data is bundled into the app; the internet is only used to fetch the bottom banner ad
• No sign-in, no account, no personal questions
• Calm dark-mode design, easy on the eyes
• Lightweight, fast install
• Free, supported by a single bottom banner ad

■ Privacy

popcast itself does not collect any personal data. It does not request access to your location, contacts, photos, files, microphone, camera, or accounts.

■ A note on data accuracy

Values for future years are projections, not measurements. They are based on standard demographic assumptions about fertility, mortality, and migration; real outcomes will depend on policy, technology, climate, and migration shifts that no model fully captures. Treat the projected values as a starting point for exploration and discussion, not as a precise forecast.

GDP values for years past the most recent published data are simple trend-based extrapolations and should be read as a directional indicator only.

Hold a planet in your hand and see for yourself how the world is changing.