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What’s New

Version 4.2.3

Improve iPhone X full screen support
Fix a bug into Comet Web data download
Fix random crash with iOS12

Ratings and Reviews

5.0 out of 5
6 Ratings

6 Ratings

An_Apple_user ,

A professional astronomy app for the serious astronomers

If you're a serious astronomer, this is an excellent astronomy app to have. It is loaded with tons of advanced features not found in many other astronomy/planetarium apps. At first, the interface is tricky to figure out because it doesn't follow the design philosophy of Apple iOS (it’s more like the old days of Palm OS, which is where this app originated in) but once you’ve figured out the interface, it is very easy to breeze through the pages. You will not believe how much stuff this app is loaded with. There’s a page for deep sky objects. There’s a page for satellites. Another page for Moon phrases, map of Moon, and other moon details. Another page for Messier objects. A page for comets and asteroids. There are several pages that will assist your observing needs (Polaris adjustments, weather checks, planning, etc). The pages dedicated to Mars, Saturn, and Jupiter are excellent for public outreach events as they allow me to show/demonstrate the planets’ moons live time. The author is active and have been releasing updates slowly over the years. "Slowly" because there isn't any thing to improve on but fixing bugs and staying current with newer iOS versions, lol. These days, I used this app together with the Redshift app and that gives me all the astronomy needs. Highly recommended!

Jean Stars12 ,

Amazing Astronomy app

One of my favorite astronomy app since so many many years. Is loaded with so tons informations about each planets phases, elongations, conjunctions, events past and futures like no other astronomy app, and about stars and much more (there is a lot I don’t use for my needs). It is such an amazing app for serious people passionate or people who love watching and following the stars and planets. Too sad there isn’t more ratings for an app that is at least 10-12years old and keep improving a lot over time (less lately it seems). Thank you.

marcmarq524 ,

No kidding!!

This app is incredible! Not because it is a perfectly written app or because of it's ease of use, it is far from achieving those goal; but because of the shear volume of information packed into this software. I have every astronomy app made on my iTouch and I was overwhelm with the amount of icons to choose from. Heck, I had to consult the Palm OS manual just to know how to save my location coordinates. There is no manual on their website for v3.0 for the iPhone, which is makes frustrating. Normally I would give such an app a lower rating but I want the designers to keep working on this potential masterpiece. If they would at least write an instruction manual for it I would have given five stars.


Cyrille Thieullet
63.2 MB

Requires iOS 8.0 or later. Compatible with iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, iPad mini 3 Wi-Fi + Cellular, iPad mini 4, iPad mini 4 Wi-Fi + Cellular, 12.9-inch iPad Pro, 12.9-inch iPad Pro Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7-inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5-inch) Wi‑Fi + Cellular, iPad (6th generation), iPad Wi-Fi + Cellular (6th generation), iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro (12.9-inch), iPad Pro (12.9-inch) Wi‑Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi-Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular,and iPod touch (6th generation).



Age Rating
Rated 4+
© 2010-2017 Cyrille Thieullet


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