Today the world's information fits in a small mobile phone, and every person benefits from mobile apps in daily life according to their needs and interests. For those interested in astronomical observations and information, many useful apps are available that help you see and understand stars, planets, and other celestial objects. Below is a list of useful astronomy apps and games that include apps providing astronomical information and observation guides, apps showing 3D maps and models of the universe and celestial objects, and informative and entertaining games for astronomy enthusiasts.
These Android apps can be used entirely free of charge.
FreeA modern, highly accurate and fully offline Android dashboard for astronomy and Islamic calculations. It provides prayer times and Qibla direction with second-by-second precision based on your exact geographic location worldwide. It also includes precise scientific prediction of crescent sighting, live moon/sun tracking and ephemeris, and complete solar/lunar eclipse records — all available offline in 100% secure mode.
FreePredicts satellites, the International Space Station, and other celestial phenomena. It provides precise trajectories of artificial satellites and the ISS, star charts, and event details. However, its user interface may seem a bit odd and outdated, and the notification system is also limited.
FreeNASA's official app that provides the latest news and information on space missions, the ISS, and other astronomical research. It includes access to NASA missions and research, ISS location and live streams, and research materials. It is the best source for the latest information from NASA, although some users may find its UI somewhat outdated and it can be a little slow at times.
FreeNASA's official app providing accurate information about when the International Space Station (ISS) will pass over your location, along with its direction and altitude. It also offers real-time tracking, flyover schedules, and automatic notifications so you never miss an ISS sighting. Includes an AR mode and visual guides that make it easy to find the space station in the sky. If you're interested in ISS observations, this is one of NASA's most useful apps.
FreeA great app that can provide a live video stream directly from the International Space Station. It features different camera angles and shows the current position of the ISS. However, the live feed may sometimes go down and a fast internet connection is required.
FreeBest for those who want information about SpaceX's Starlink satellites. It tells you the exact time based on your location when you can see the Starlink train and can also provide notifications.
FreeThis app shows the real-time location of not only the ISS but also other satellites, and provides orbital details along with updates on various space missions. You can also get information about Pakistani satellites.
FreeA specialized astronomy app that predicts when the International Space Station (ISS) will transit across the sun, moon, or other planets. It provides accurate transit times, angles, and paths for your current location or any selected spot, which can prove extremely useful for photography and observation. The app includes maps and detailed data, and also alerts about upcoming transits. However, it shows general ISS passes only within a few kilometers, and due to a slight uncertainty, it's useful to confirm the information from this app via the ISS Transit Finder website. If you want to capture memorable moments of the ISS passing in front of the sun or moon, this is an excellent app.
FreeA comprehensive astronomy app that provides information about moon phases, sun and planet positions, lunar eclipses, and other celestial phenomena. It has an offline mode available and no advertisements. However, its user interface may be complex for some users.
FreeA simple app that presents moon phases in a beautiful and easy-to-use interface. It also uses very little battery, but does not contain much detailed astronomical data.
FreeA great app that provides details about weather conditions, cloud cover, wind speed, humidity, and especially light pollution. It is specifically designed for astronomical observation guidance and is widely used around the world.
FreeA useful app that provides dates and details of all important astronomical events in the coming month, such as planetary conjunctions, lunar eclipses, solar eclipses, meteor showers, and other major events.
FreeSun & Moon Calendar is a comprehensive and completely free Android application designed for astronomical tracking and calendar management. It seamlessly integrates Gregorian, Old Julian, Lunar Hijri, and Solar Hijri calendars—complete with multi-language month names and zodiac signs. Key features include high-precision prayer times with notifications, 2D/3D compasses for Qibla direction, real-time Sun and Moon rise/set tables, moon phases, lunar mansions, crescent sighting forecasts, and solar/lunar eclipse timings. The app also offers interactive 3D celestial sphere visualization, day/night world maps, seasonal transitions, and options to export or share tables and graphical data.
FreeAn excellent app that provides detailed maps of the lunar surface and information about various features such as craters, mountains, and other geographical characteristics.
FreeA comprehensive astronomical weather app that helps estimate suitable conditions for sky observations. It provides cloud cover, air transparency, seeing conditions, light pollution, satellite imagery, and weather forecasts along with moon, planet, and satellite rise/set times and upcoming astronomical events. It also includes an online community related to astronomy. Although its user interface is relatively simple, it can be a useful planning tool for observational astronomy and astronomy photography enthusiasts.
FreeA free and open-source astronomy program that allows you to explore the solar system, nearby stars, and numerous objects in our galaxy in 3D. You can approach any planet, moon, or star and view it from different angles, and by moving time forward or backward you can also observe astronomical movements. Although its graphics are not as impressive as commercial programs, it is completely free and is considered an excellent choice for educational purposes.
FreeAn impressive 3D astronomy app that gives users the ability to virtually travel through our galaxy and distant star systems. It has a vast database of millions of stars, thousands of exoplanets, black holes, and other astronomical objects. You can closely observe different stars and planets and get detailed information about them. This app is very similar to SpaceEngine and is the best way for Android users to explore the universe in 3D. However, some of its newer features require relatively powerful mobile processors and battery usage can increase significantly.
FreeAn extremely popular space game in which you can observe the effects of meteors, lasers, black holes, supernova explosions, and other fictional or scientific weapons on different planets. Its 3D graphics are absolutely stunning and provide opportunities to see various scenarios of planetary destruction. This game is best for entertainment but many of the effects shown do not fully represent scientific reality, and it should be understood as an entertainment game rather than an educational simulator.
FreeA simple but useful simulation game that shows the movements of solar system planets, moons, and other objects in 3D. You can modify the orbits, mass, and other characteristics of different planets to observe the results, which helps in understanding gravity and orbital mechanics. This can be particularly useful for students and astronomy enthusiasts, but its graphics and features are limited compared to newer astronomy simulators.
FreeAn educational strategy game developed by NASA in which you manage your space program and decide which scientific research, space projects, and research activities to allocate budget to. Research at the space station affects future projects, and various events and decisions play an important role in the success or failure of your program. This game presents concepts of space research, scientific project planning, and budget management in an interesting way, but focuses more on strategy and decision-making rather than action.
FreeAn educational simulation game from NASA that gives users the experience of working in a microgravity or near-weightless environment. In it, you have to complete various missions and responsibilities on the International Space Station, while moving in space, determining direction, and daily tasks feel much more difficult compared to Earth. This game helps in understanding the practical challenges of human spaceflight and is especially interesting for those who want to know what working in space actually feels like.
Freemium apps with a free version, whose additional features involve payment, subscription, or ads.
FreemiumAn astronomy app that shows the sky with the closest view to reality, helping you identify stars, planets, and galaxies. It has data for over 1.5 million stars and is an extremely reliable app. Once installed, point your phone at the sky and it will display the names and positions of all objects currently visible. Its free version is extremely useful, while some features are available only in the paid version — though paid features are only needed at professional level.
FreemiumProvides animations, audio guides, and detailed information about celestial objects. Its modern UI, AR mode, and educational content make it stand out, but some features are only available in the paid version and the free version also displays ads.
FreemiumProvides detailed information about the solar system and its objects through a 3D model. Thanks to its excellent 3D graphics, this app can be used for recreational purposes and even professional or educational use. However, a subscription is required for some features, and as the name suggests, this app is best for solar system information but has virtually no deep-space object data.
FreemiumPredicts whether nighttime conditions are suitable for stargazing. This is an extremely simple and useful app, but unfortunately after a recent update it can only be used after purchasing a subscription.
FreemiumA top-class comprehensive astronomy app that provides detailed information about the moon, planets, stars, and even comets. It offers very detailed and accurate information about astronomical events in the coming month. Although the free version is usable, its paid version is more useful.
FreemiumAn excellent astronomy app that provides the best observation times and details of celestial objects available at those times, predicting optimal stargazing time while considering weather, light pollution, and moon brightness. It also shows sunrise/sunset times for the moon, sun, and planets. Its offline mode works in remote locations and the user interface is very easy. However, some features are only available in the paid version and it does not include a real-time star chart or AR mode.
FreemiumA modern astronomical weather app that provides detailed information about weather and astronomical conditions needed for sky observations. It includes cloud cover, air transparency, seeing conditions, humidity, wind speed, moon and planet rise/set times, and future astronomical events. It also has a light pollution map, dark sky site finder, and the ability to share astronomical photos. This app can be especially useful for astronomy photography and planning observations with telescopes. However, some newer features are only available through subscription.
FreemiumAn interesting space simulation game in which you try to make different planets and moons habitable for humans. It includes Mars, Venus, Mercury, and other objects in the solar system whose atmosphere, temperature, atmospheric pressure, and oxygen levels can be modified to form a complete ecological system. This game is based on real scientific concepts such as terraforming and planetary evolution, which is why it is not just entertainment but also has educational value. However, in-app purchases are required for many new features and access to additional worlds, and some levels take considerable time.
FreemiumAn impressive space simulator that allows users to observe gravity, planetary collisions, supernova explosions, and even interactions between galaxies. You can add different stars, planets, and other astronomical objects to create your own custom cosmic scenes and view their results in real time. Its 3D graphics and physics simulation make it similar to Solar Smash and Universe Sandbox, while also being quite useful from an educational perspective. However, some newer features require in-app purchases and performance may be affected on older mobile phones.
Astronomy apps available exclusively for iPhone, iPad, and Apple Watch.
FreemiumA spectacular astronomy app that works on iPhone and Apple Watch. It scans the sky based on the current time to provide information and shows data with modern animations, but is only available for iOS users and the subscription version is expensive.
FreeA superb app for iPhone iOS users that displays real-time ISS tracking. It features a real-time 3D model, details and alerts for the next ISS pass.
Desktop software for computers and PCs.
PaidAn extremely powerful astronomical simulator that can display the entire visible universe in 3D. Through it you can freely travel from Earth to distant galaxies, nebulae, black holes, and exoplanets. It includes both real astronomical data and scientifically based fictional solar systems. Although its full version is paid for computers, it is considered one of the best software in the world for visually understanding the universe. This app is not currently available for mobile users.