We are redesigning the Android and iOS phone applications. The new App will come with a new interface and new features. You can still download the iOS App from the Apple store for now. The recent Android application is sold out from google store, but you can still download it from our official website. Also, the old Android App may not compatible with some Android 10 phones. If you have trouble with using it on your phone, please try to set up the solar system from PC software. Thanks in advance, and have a wonderful day!