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Asteroid Alert delivers real-time alerts about near-Earth objects and space weather, powered by NASA NEO data and a user-friendly graphical interface. It offers two notification levels and a daily-updated NEO database with detailed object metrics. Not ranked in top lists, it carries a 4.65 rating from 5,951 users and shows steady traction with 500,000+ total downloads and 290 in the last 30 days.
Pros & Cons
Real-time near-Earth object and space-event alerts with two levels
NASA NEO data integration with daily updates
Detailed NEO metrics (size, velocity, distance, orbital period)
User-friendly graphical interface with clear notifications
Lacks broader astronomy terms and live sky/telescope features emphasized by some competitors (e.g., sky, stars, telescope)
Focus is NEO-centric; non-NEO objects outside the NASA NEO database may not be notified
Could benefit from live sky-simulation features offered by some competitors
About Asteroid Alert
Asteroid Alert was a tools app developed by PhoneScience. It was removed from Google Play Mar 6, 2024 and is no longer available for download.
Download Statistics
Asteroid Alert had been downloaded 610 thousand times before it became unavailable.
User Ratings
Asteroid Alert was rated 4.65 out of 5 stars, based on 6 thousand ratings.
App Information
Asteroid Alert was free to download. The APK download size was 1.84 MB. The last available version was 1.29.9. The last update was on May 4, 2020.
Technical Requirements
Asteroid Alert required Android 4.0+ or higher. The app had a content rating of Everyone. The app had been available on Google Play since June 2015.
Description
This is a scientific application that simulates the solar system dynamics using the information provided by the NASA NEO Program. The Near Earth objects and objects close to other planets will be reported in real time. The advanced graphical interface allows you to monitor the orbits of celestial bodies as a function of the elapsed time. X rays and protons emitted by Sun are also notified to have a complete view of the dangers from space.
FEATURES ● User friendly graphical interface ● Sky view mode ● Sensor targeting ● Spherical coordinates of selected objects ● 2 Notification levels basing on severity or proximity to the Earth ● Notification of objects close to other planets ● Notification of solar wind events (X rays and protons) ● News regarding asteroids and scientific projects ● Detailed information of NEO (Size, Velocity, Distance, orbital period) ● Target links to space missions ● NEOs database updated every day
FOR PRACTICAL REASONS ● The maximum resolution is achieved for asteroids that are less than 0.1 AU from the planets. The application photographs the situation on the current date and simulates events that will occur in the future or have occurred in the past. ● The number of asteroids plotted in the asteroid belt is only a fraction of the real number. ● The asteroids not yet included in the NASA NEO database may not be notified. ● X rays and protons levels are processed and saved continuously. The solar activity indicated as a significant event, has been inferred through the Statistical analysis of about 6 months of data sampling. The prediction will be improved with the increasing of data amount.
NOTIFICATION CRITERIA: ● With the exception of the first notification, new notifications will be generated only if NEOs are approaching. The distance of the NEO to the planet must be at least 10% lower than that reported in the previous notification. ● NEO notifications have priority over solar notifications except for powerful events.
Space is our next frontier.
Recent changes: (1) New functions; (2) Increased stability
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★★★★★
Cool app. Love how it tells you how close the near earth objects are getting and when to duck and cover.
★★★★★
Very informative, can check solar storm activity and when we will be hit by the big rock 😁
★★★★★
I really like how more graphic and detail and how you can move around the parallel and see exactly how close an asteroid actually is some sites looks like the asteroids heading straight for the Earth and you can't know the difference here you can move it around the parallel and see the asteroid is not near the Earth great job everyone it's a good site for everyone
★★☆☆☆
I love the notifications that there's something coming towards Earth & it says what it is. I just wish you didn't have to be a high level mathematician or astrophysicist to make heads or tails of the information about the object & location. Most of the app is unintelligible to regular people other than the short blurb notifications. I think it's great to have that high-end info, if there could just be some way for regular people to understand it too & even learn the advanced stuff from it
Technologies used by Asteroid Alert
8 permissions·6 libraries
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Trust & Safety: Trust & safety: The app requests location, network state, internet access, and a foreground service to deliver persistent alerts and data updates, along with boot completion handling and license verification. It also requires MODIFY_AUDIO_SETTINGS. These permissions align with real-time notifications and data-update needs; users should review privacy implications of location access and background activity.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
