Mobile Obs Pro Astronomy
by Wolfgang Zima
· Education
· $11.99
On Google Play since February 2019
· Data updated
Mobile Obs Pro Astronomy is made and published by Wolfgang Zima. AppBrain is an independent app data site and isn't affiliated with Wolfgang Zima. The app name, icon, screenshots and description belong to Wolfgang Zima and are shown as published on Google Play.
AppBrain's verdict
EstablishedLoved by users- Rating on Google Play
- 4.59
- 4,986 ratings
- Installs
- 49 thousand
- Last updated
- August 25, 2026
- Ads
- No ads
- Size
- 276.2 MB
Mobile Obs Pro Astronomy has 49 thousand installs. Users love it: 4.6 stars from 4,986 ratings.
User feedback
Ratings and reviews on Google PlayComments on Mobile Obs Pro Astronomy for Android
★★★★★
Wayne Coskrey
· Oct 15, 2026
Nice full-featured astronomy app with particularly good daily events' coverage. This is my daily go-to for keeping up with what's happening in the sky.
★★★★★
Nikos Kyriakidis
· Mar 10, 2026
It is getting better and better! I am very happy with this. Still things to improve, but it is realy unic app for an amateur astronomer
★★★★★
Billy Blazes
· Aug 25, 2025
This is the first app that I actually paid $$$ for, and it is worth every penny. Gives so much information for sky watching. Love it!
★☆☆☆☆
Sascha Meier
· Feb 24, 2026
I've used this app for so many years, but something happened in the recent updates. Moving around in the sky is no longer possible. Swiping across the screen moves the view a fraction of a degree, if at all. It has become entirely useless! Yes, I do have a budget phone, but any other app works flawlessly. No, disabling the horizon/landscape doesn't help. No, it's not the sensitivity setting. After deleting all data, it works. Once. After that, it no longer works at all. Help to investigate this.
★☆☆☆☆
Comander AGC
· Sep 16, 2025
This app appeared, at first, to be informative, easy to use, and educational. That was until I started to look more closely at a certain comet (C/2014 UN271). Initially, the app showed the comets' path would take it to within .02au of earth in Feb2031 which contradicted the astronomers who said, "it would be a billion miles away at around the orbit of Saturn." before heading back out of the solar system. Now, the owners have erased all the data relating to the comet from the app. Curious!
★★☆☆☆
Ventania
· Nov 9, 2025
What happened to this once great astronomy app? It used to be my favorite. Now upgraded to new version 4.0.1 and lost the entire list of my previous locations. Even worse: it did not show any stars, planets or deep sky objects anymore! Just found you need to disable Landscape to get those back. It's like I am unknowingly participating in a very crude Alpha test. This should never have been released like this!
★★☆☆☆
Geir Laastad
· Nov 6, 2025
Latest PRO version update is a BIG DOWNGRADE. Why editable location features and icon reorganization is removed is beyond me. The app was better before, much better.
Google Play Rating history and histogram
Store listing
By Wolfgang Zima, from Google Play“Your complete astronomy toolkit: sky maps, planets and observing plans.”
Screenshots by Wolfgang Zima, from the Google Play listing
Description by Wolfgang Zima Written by the developer, not by AppBrain. Click to read.
Explore the night sky with Mobile Observatory: realistic star maps, precise planet and Moon data, and observing tools for your location.
Mobile Observatory Pro is your complete astronomy toolkit. One purchase unlocks all features, with no subscription required.
Already bought this app? Reinstall it with the same Google account and keep using Pro. No subscription is needed.
Prefer to start for free? Mobile Observatory Astronomy is the free version with optional Premium upgrade.
★ WHAT MAKES THIS APP UNIQUE ★
REAL TOPOGRAPHIC HORIZON
Other apps assume a flat horizon. Mobile Observatory downloads NASA SRTM elevation data and renders a photorealistic 3D terrain profile for any location on Earth. All rise and set times are computed against your actual landscape — not a theoretical flat line. Astrophotographers and serious observers rely on this for precision planning.
★ NEVER MISS AN EVENT ★
• Aurora alerts when geomagnetic activity spikes at your location
• Solar flare notifications from real-time GOES X-ray satellite data
• ISS visibility alerts with brightness and trajectory predictions
• Daily astronomical event reminders — conjunctions, eclipses, meteor showers
• Push events directly to your calendar
★ INTELLIGENT OBSERVING PLANNER ★
The built-in Observing Plan Generator creates personalized target lists based on your equipment (naked eye, binoculars, or telescope), location, date, light pollution level, and minimum altitude. One tap generates the best objects for tonight — no experience required.
★ TELESCOPE CONTROL ★
Connect directly to your computerized telescope via LX200, NexStar, or INDI protocol. Browse objects in the app and send GoTo commands — seamlessly integrated with the Observing Plan Generator.
★ COMPREHENSIVE FEATURE SET ★
• Photorealistic sky view with 45,000 stars (2.5 million with download)
• Augmented reality mode with live camera overlay
• Interactive 3D Solar System and VR/Cardboard support
• Complete deep sky catalogs: Messier, NGC, Caldwell, Hidden Treasures
• Solar and lunar eclipse predictions with worldwide visibility maps
• Galilean moon positions and Saturn moon tracking
• Live space weather dashboard with aurora forecast
• Home screen widgets and night mode
★ ALL FEATURES INCLUDED ★
This is the complete paid version of Mobile Observatory with every feature unlocked. It is a one-time purchase for full feature access — satellite tracking, deep sky catalogs, push notifications, telescope control, the Observing Plan Generator, and much more are included from the start.
Trusted by astronomers, astrophotographers, and stargazers since 2011. Continuously updated with new features and data.
Learn more at https://zima.co
Recent changes:
Version 4.7.5
🔧 Bug fixes and stability improvements.
Mobile Observatory Pro is your complete astronomy toolkit. One purchase unlocks all features, with no subscription required.
Already bought this app? Reinstall it with the same Google account and keep using Pro. No subscription is needed.
Prefer to start for free? Mobile Observatory Astronomy is the free version with optional Premium upgrade.
★ WHAT MAKES THIS APP UNIQUE ★
REAL TOPOGRAPHIC HORIZON
Other apps assume a flat horizon. Mobile Observatory downloads NASA SRTM elevation data and renders a photorealistic 3D terrain profile for any location on Earth. All rise and set times are computed against your actual landscape — not a theoretical flat line. Astrophotographers and serious observers rely on this for precision planning.
★ NEVER MISS AN EVENT ★
• Aurora alerts when geomagnetic activity spikes at your location
• Solar flare notifications from real-time GOES X-ray satellite data
• ISS visibility alerts with brightness and trajectory predictions
• Daily astronomical event reminders — conjunctions, eclipses, meteor showers
• Push events directly to your calendar
★ INTELLIGENT OBSERVING PLANNER ★
The built-in Observing Plan Generator creates personalized target lists based on your equipment (naked eye, binoculars, or telescope), location, date, light pollution level, and minimum altitude. One tap generates the best objects for tonight — no experience required.
★ TELESCOPE CONTROL ★
Connect directly to your computerized telescope via LX200, NexStar, or INDI protocol. Browse objects in the app and send GoTo commands — seamlessly integrated with the Observing Plan Generator.
★ COMPREHENSIVE FEATURE SET ★
• Photorealistic sky view with 45,000 stars (2.5 million with download)
• Augmented reality mode with live camera overlay
• Interactive 3D Solar System and VR/Cardboard support
• Complete deep sky catalogs: Messier, NGC, Caldwell, Hidden Treasures
• Solar and lunar eclipse predictions with worldwide visibility maps
• Galilean moon positions and Saturn moon tracking
• Live space weather dashboard with aurora forecast
• Home screen widgets and night mode
★ ALL FEATURES INCLUDED ★
This is the complete paid version of Mobile Observatory with every feature unlocked. It is a one-time purchase for full feature access — satellite tracking, deep sky catalogs, push notifications, telescope control, the Observing Plan Generator, and much more are included from the start.
Trusted by astronomers, astrophotographers, and stargazers since 2011. Continuously updated with new features and data.
Learn more at https://zima.co
Recent changes:
Version 4.7.5
🔧 Bug fixes and stability improvements.
Safety and technology
Found in the app by AppBrain- Ads
- No ads
- Price
- $11.99
- Libraries
- 70
- App size
- 276.2 MB
- Content rating
- Everyone
Technologies used by Mobile Obs Pro Astronomy
20 permissions
·
70 libraries
Subscribe to see full permission and library details
Releases
Updates seen on Google Play- Version
- 4.7.5
- Launched
- February 2019
Alternatives
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Installs
Tracked by AppBrain- Last 30 days
- 270
- Play install range
- 10+ thousand
- Launched
- February 2019
Installs over time
Mobile Obs Pro Astronomy has been installed 49 thousand times. Over the past 30 days, it has been installed 270 times.
Rankings
Google Play top chartsGoogle Play Rankings for Mobile Obs Pro Astronomy
This app is not ranked
About the app and developer
About Mobile Obs Pro Astronomy
Mobile Obs Pro Astronomy is an education app developed by Wolfgang Zima.
How many times has Mobile Obs Pro Astronomy been installed?
Mobile Obs Pro Astronomy has been installed 49 thousand times. In the last 30 days, the app was installed 270 times.
What is the rating of Mobile Obs Pro Astronomy?
Mobile Obs Pro Astronomy is rated 4.59 out of 5 stars, based on 5 thousand ratings.
Is Mobile Obs Pro Astronomy free?
Mobile Obs Pro Astronomy costs $11.99. The app size is 276.20 MB. The latest version available is 4.7.5. The last update was on August 25, 2026.
What are the requirements for Mobile Obs Pro Astronomy?
The app has a content rating of Everyone. The app has been available on Google Play since February 2019.
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