The app answers what happened during World War One and where it occurred. It displays a map for each event and provides a link to a Wikipedia article for more details.
by THOMAS HORN★ 5.01 ratingsReferenceFreeData updated 2026-09-19
Access chemical element data including atomic number, symbol, and properties. Select and copy element details. Create molecular formulas by long-pressing symbols. Calculate molecular mass. Link to Wikipedia pages for additional information.
Explore airliner details through articles and HD photos. Browse information on aircraft models, manufacturers, and aviation technology. Search for specific planes, view detailed specifications, and access organized content on aviation topics.
The app provides a portable copy of the US National Register of Historic Places, including over 100,000 sites. Users can find significant locations nearby or along a planned route, with options for various map views and Wikipedia information.
Explore historical content about using image recognition and geolocation. View video war stories, access multimedia exhibits, and navigate the site. Learn about key events and figures through interactive elements and detailed descriptions.
Explore historical maps from 3000 BC to AD 1900. View detailed route maps for events like the Punic Wars. Switch between landscape and portrait modes. Access continuously updated historical data. Sync with iPad for better viewing experience.
Explore 3D flag models and view corresponding capital cities on interactive maps. Check distances between locations. Access Wikipedia information with a tap.
Play a turn-based strategy where players take turns firing at enemy ships to sink them. Choose between 10x10 and 5x5 grid sizes. Track remaining ships and win by sinking all of the opponent's vessels.