Showing 341–360 of 1,000 ranked alternatives.
Geoffrey Watt
Explore gemstone details and prices
Explore gemstone information with detailed descriptions, photos, and origin details. Search by gem type or characteristics. View current stock and high-quality images. Access the Gemepedia for alphabetical listings and educational content.
toojuice, LLC
Learn with interactive games and animations
Learn basic vocabulary through interactive lessons on numbers, colors, and shapes. Complete exercises with animated visuals and audio. Unlock vocabulary games after each lesson review. Track progress with lesson completion and review features.
toojuice, LLC
Learn with interactive games and animations
Learn basic vocabulary through interactive lessons on numbers, colors, and shapes. Complete exercises with animated visuals and audio. Review lessons to unlock vocabulary games that reinforce learning.
CHRISTOPH ENDER
Test your knowledge worldwide
Play quizzes on obscure facts and unusual aspects of countries. Compete against others in real-time matches. Explore cultural oddities, historical surprises, and unique records. Track progress and unlock new content as you advance.
THOMAS HORN
Discover World War One history daily.
The app presents daily events from World War One, detailing what happened and where it occurred. It includes zoomable maps and links to Wikipedia articles for further information.
toojuice, LLC
Learn Taiwanese Mandarin with Gus
The app offers nearly 90 Taiwanese Mandarin words through 10 interactive activities. Gus, the friendly owl, guides children through lessons on animals, food, and clothes with native audio and animations.
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