Showing 141–160 of 1,000 ranked alternatives.
Daniel Baczkowski
Play quizzes and track your progress
Test general knowledge across various subjects, learn about technology inventions and famous discoveries, and explore biographies of notable scientists. Answer multiple-choice questions, track scores, and compete with other players.
Howard Hughes Medical Institute
Explore ancient Earth maps and climate data
Explore Earth's geological history by visualizing continents, oceans, and climate changes over billions of years. Adjust time scales to view past landscapes, track sea level shifts, and observe planetary transformations.
Michael Howard
View Earth's Moon in 3D.
The app renders the Moon in realtime 3D using satellite imagery and topographic data. Users can manipulate the view, adjust sunlight, and see labeled terrain features and spacecraft.
ShapeApp Technologies ApS
Track body shape with iPhone camera.
The app uses the iPhone camera to measure and track body shape in inches or centimeters. Users can get measurements of body parts and muscle groups from pictures to follow body goals and track physique.
shebli geegieh
Track sun and positions
Calculates sun and positions with 0.3% accuracy. Determines sunrise and sunset times. Provides moonrise and moonset times. Adjusts for elevation and time zone.
Linda Schnetzinger
Zoom and compare cosmic scales with gestures
Astronomical objects and compare sizes from galaxies to atoms. Use gestures to zoom in and out, to microscopic levels or cosmic distances. View detailed comparisons and understand relative sizes visually.
ImagiRation LLC
Solve problems offline
Provides free exercises without ads or external contact. Features include a patented interface that reduces trial-and-error, no setup or registration, and offline functionality.
MOUNT DESERT ISLAND BIOLOGICAL LABORATORY
Host citizen science projects online
Host citizen science projects by creating and managing data collection forms. Invite participants to submit observations. Analyze aggregated data and share results publicly. Export findings in various file formats.
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