Provides country codes with 2-letter (alpha-2), 3-letter (alpha-3), and 3-digit numeric formats. Allows sorting by country name, alpha-2, alpha-3, or numeric. Optionally displays country names in French.
by Edwin Hou★ 5.01 ratingsReferenceFreeData updated 2026-09-08
Identify stamps using camera or photo library. Access country of origin, year of issue, and other details. Organize collections with search and categorization tools. Share information via social media or email.
The app presents seven paintings per level for users to identify their artists from four choices. Levels are organized by country, museum, and genre, with increasing difficulty as users progress.
Calculate equivalent dose (EQD) and biologically effective dose (BED) using formulas for radiotherapy. Input parameters such as dose per fraction, total dose, and fractionation scheme. Display results instantly. Save and export calculations.
The app provides a quiz to test knowledge of world countries and their capitals. Users can learn country and capital names and share them via email, SMS, or Facebook.
Learn new words through interactive flashcards with audio in six languages. Reorder letters to form words with audio feedback. Play memory games to reinforce vocabulary retention. Switch languages easily for multilingual learning.
Learn the through interactive pages featuring letter pronunciation, example words, and related images. Navigate self-paced lessons with simple controls. Focus on letters, sounds, and visuals through a clean, child-friendly design.
Display country locations on a world map. Select from a list or use shake gesture to randomize. View detailed information about each country's location and features.
Explore a 3D model of a red-eyed treefrog's . Rotate and zoom to view the integument and skeletal system. Highlight individual bones to display their names and descriptions. Available in English, Spanish, Portuguese, and French.
The app prepares children for preschool and kindergarten by teaching literacy skills. Children learn letter sounds, tracing, matching, and identifying beginning sounds through interactive activities and games.