Apps Like Planetary Clock for iPhone and iPad
Track positions in real time
View positions of all solar system planets at any date. Adjust time to see real-time movements. Display accurate orbit sizes, eccentricity, and orbital shapes based on NASA data. Show realistic planet sizes relative to each other.
Planetary Clock screenshots
Ranked alternatives
Showing 741–760 of 1,000 ranked alternatives.
Satellite Passes
One Venerate Limited
Track and view real-time locations
Track with real-time predictions and interactive maps. View orbits, identify the International Space Station, Hubble Space Telescope, and other satellites. Set location and time for accurate pass information.
Mars Today
James Buckhouse
View photos, explore rover missions, share favorite
View and explore images from NASA’s Curiosity, Spirit, and Opportunity rovers. Browse current or past photos by sol date. Bookmark favorite images and share them directly. No login required.
GuitarScales Free
Jens Korinth
View scales on guitar neck
View guitar scales on a virtual neck with adjustable base notes and note labels. Customize tuning settings including Drop D or user-defined tunings. Zoom in and out of the neck for detailed scale visualization.
eyeSubtract School Edition
fishdog.net, LLC
Solve subtraction problems and advance through themed
Students solve subtraction problems by moving numbers into correct positions. Problems increase in difficulty. Correct answers earn points and unlock themed levels. Incorrect answers are revisited until mastered.
Relativistic Calculator
Joris Borletsis
Calculate time dilation and altitude effects
Calculate time dilation effects using relativity principles. Input travel speed and compare aging between twins. Explore gravity's impact on time with altitude adjustments. Visualize effects through scenario examples.
Telescope Eyepiece Calculator
Cederic Schmid
Calculate specs offline
Calculate magnification, exit pupil, true field of view, and f-ratio based on aperture, focal length, and type. Color badges indicate optimal viewing conditions. Results update in real time as inputs change.
Physics Calculators Converters
V PUGAZHENTHI
Calculate and convert values
Calculate physical quantities using formulas for force, kinetic friction, static friction, centripetal force, and more. Convert units for gravitational acceleration, angular acceleration, density, and water density.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.