Showing 21–40 of 1,000 ranked alternatives.
MediBang inc.
Draw freely without interruptions
Create digital art with layers, brushes, and customizable palettes. Import images and vector graphics. Save and export in various formats. Access tutorials and community features. No ads during use. One-time purchase for permanent access.
RWTH Aachen University
Measure gravity, track motion, test sensors
Use phone sensors to measure magnetic fields, gravitational acceleration, and sound. Run preloaded experiments or create custom ones. Export raw data and results for analysis. Share experiments with others.
ALEXEY KOZLOV
Measure angles in photos and real time
Measure angles on photos or in real time using the camera. Adjust and compare multiple angles simultaneously. Scale, move, and change color of measurement tools for accurate readings. Save and review measurements permanently.
Tellmewow Studios Sociedad Limitada
Play games to improve visual skills
Play games to improve visual skills and viso-spatial abilities. Identify symmetrical patterns, locate numbers in ranges, and recognize 3D shapes. Stop moving elements, solve puzzles, and estimate perimeters and contours. Suitable for all ages.
Linfeng Li
Explore celestial objects in 3D
Explore celestial objects in real-time 3D. View planets, moons, star clusters, and galaxies with accurate positioning and movement. Navigate through at adjustable speeds. Zoom in on objects and observe their features. Save and share custom views.
Chintan Kavathiya
Prepare for exams with simulator questions
Study for the exam with questions and answers. Access a simulator to knowledge. Prepare for multiple branches including Army, Navy, Air Force, Marines, Space Force, and Coast Guard. Track progress and review explanations for each question.
Electronial
Calculate formulas and values
Perform calculations using built-in formulas and calculators for displacement, acceleration, Newton's second law, gravitational acceleration, Hooke's law, momentum, work, density, kinetic energy, potential energy, elastic energy, electric power,
Julian Tigler
Send secret messages with ciphers
Send encrypted messages using historical ciphers like A1Z26, Caesar Shift, and Vigenere. Encrypt text with customizable settings. Share coded messages via text or email. Decode messages using the same methods. View details and instructions.
Grace Luo
Track time with moving hands
Teach time concepts with interactive clock animations showing second, minute, and hour hands. Include quizzes to assess time-telling skills. Offer trivia questions on culture, science, and time.
Artem Tselikov
Track progress and compete online
Practice speed reading and peripheral vision exercises with customizable settings. Track progress through detailed statistics. Compete on online leaderboards. Adjust difficulty levels and monitor performance metrics.
Tim Lucas
Explore with slopefields and phase planes
Explore graphical solutions to ordinary with interactive activities. Input custom or use preloaded examples. Plot vector fields and solutions for multiple initial conditions. Solve systems of up to six dynamically.
Artem Tselikov
Track progress and compete online
Practice speed reading and peripheral vision exercises with customizable settings. Track progress using detailed statistics. Compete on online leaderboards. Improve attention and visual discernment through targeted drills.
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