Showing 61–80 of 1,000 ranked alternatives.
Lucas Wijk
Play quizzes, learn , challenge friends
Test knowledge with quizzes on countries, capitals, flags, and population. Compare countries using stats like area or population. Challenge friends locally or play solo. Track progress and learn fun facts about global locations.
University of Tennessee
Find healthy trees to study
Identify and tag healthy trees in local areas. Upload photos and location data for scientific research. Contribute to studies on tree resilience and forest health.
nove8 LTD
Track cat health, learn training tips,
Provide cat tips for creating a safe home, comfortable sleeping area, and environmental enrichment. Offer guidance on nutrition, grooming, and health. Track vaccination records and schedule vet visits.
Vector 254 LLC
Convert units, calculate formulas, track reactions
Calculate reactions with built-in equations and thermodynamic data. Convert units for pressure, temperature, and concentration. Solve material and energy balance problems. Access property tables for gases and liquids.
Jakub Klementewicz
Solve math problems step by step
Solve math problems step-by-step with detailed explanations. Input equations to see solutions. Learn algebra, functions, fractions, and graphs. Verify answers and track progress. Supports multiple math topics including linear and quadratic functions.
Squeakosaurus ug & co. kg
Play with kittens, shoot hoops, paint
Explore a playful kitten world with interactive activities like airplane rides, hoop shooting, and hide-and-seek. Care for a realistic pet by feeding, cleaning, and playing. Create paw paintings and watch cute animations.
NASA
Paint coral in 3D and classify reefs
Create 3D paintings to classify real coral reefs and contribute to ocean conservation. Explore underwater environments with marine animals. Learn about coral classification and ocean ecosystems through interactive activities.
TITAN PLUS LTD
Identify coins with AI image recognition
Identify coins using AI-powered image recognition. View detailed information including mint marks, years, and rarity. Track collection progress with a personal database. Share findings with other collectors.
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