Bright Comets
Hanno Rein
Find with your device's camera
Locate in the night sky using device camera. Display red target marker indicating comet position. Use location and NASA JPL ephemerides for accurate positioning.
Apps Like DifCal for iPhone and iPad
DifCal screenshots
Ranked alternatives
Showing 121–140 of 1,000 ranked alternatives.
Amateur Radio Toolkit
Electronial
Calculate coordinates and grid squares for projects
Offers calculators for designing radios and antennas. Users can find latitude and longitude from a maidenhead square or vice versa. Calculate distances between squares. Convert units. Locate current position.
Digital Angle Finder: 3D Meter
ALEXEY BRILEV
Measure angles with your device
Measure angles between two surfaces using accelerometer and gyroscope. Determine angles between lines on a plane by aligning device edges. Display measurements in degrees. Switch between protractor and finder modes.
Angle Meter 360
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.
Rock Identifier: Gemstone Find
Arman Salimov
Identify rocks and minerals with photos
Capture a photo of a , gem, or mineral for instant identification. View detailed information about its value, origin, and history. Access educational content about different types of stones and their properties.
Rock Identifier - Rockby
Pixoby OU
Identify rocks, minerals, and gems
Take a photo of a , mineral, gem, or crystal to identify it. View detailed information about its properties, composition, and formation. Compare findings with a database of known specimens. Save and organize identified items in a personal collection.
Learn Physics Tutorials
Saqib Masood
Concepts and solve problems
Fundamentals through interactive lessons and visual simulations. Explore topics like motion, energy, and electromagnetism. Solve problems with built-in exercises and instant feedback. Access detailed explanations and diagrams for complex concepts.
Easy Train Game
monois Inc.
Build tracks, control trains, add scenery
Create tracks by dragging on the screen to guide trains and bullet trains. Build cities by touching and dragging to add buildings, trees, and puddles. Simulate collisions with obstacles. Switch to conductor mode to control the movement and direction.
Touch Waves
Xavier Daxhelet
Explore wave physics with animations
Provides explanations of wave physics concepts with equations and animations. Users can view 3D illustrations of wave behaviors. Teachers can project animations for classroom demonstrations.
Touch Train 3D
monois Inc.
Trace trains and switch to immersive view
Simulation lets users trace the screen to control movement. Users can switch to a perspective view for an immersive experience. Adjust viewpoints and draw tracks from different angles. Explore maps and change modes for varied perspectives.
All About History Magazine
Future Publishing Ltd.
Explore historical articles and visuals
Explore historical events through articles, photos, infographics, and illustrations. Read defining moments with accompanying images. Learn from eyewitness accounts of historical events. Save and share content from each issue.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.