Moon Atlas vs DragonflyPro

Explore a 3D globe of the Moon Moon Atlas is an astronomy application that lets you use pinch and finger gestures to manipulate a 3D globe of the Moon. This is a rendered sphere and not a static map image. As you zoom in more labels appear as finer detail comes into view. You can double tap on the labels to get more information about a particular feature. Moon Atlas displays the phase and libration of the Moon from your chosen location and renders these on the globe. You can switch to a 'Globe' mode that allows you to spin the Moon around to see far side features. The feature database is searchable and can move the globe to a searched feature. The phase can be switched off and the far side is shown in a slightly darker shade of grey. Date, time and location can be changed. There is also a realtime mode that will update to the current time. The Moon globe can be shown with north or south at the top or inverted to suit different telescope views. Over 1800 named features are included as well as 26 spacecraft that reached the surface of the Moon. In addition, information about the current Moon phase and libration are provided. You can swipe left and right on the phase view to go backwards and forwards a day and on the libration chart to go backwards and forwards a month. Mars, Mercury, Venus, Jupiter and Saturn atlases are also available on the App Store! Also there is Planisphere, a star charting app, available on the App Store!

Dragonfly SA is the ultimate app for identifying and appreciating the Dragonflies and Damselflies of South Africa. It boasts an award winning identification tool and is a vast source of information: - Over 1200 beautiful and diagnostic images with plates showing detailed identification characteristics of both males and females. - Informative and comprehensive information on each species. - Interactive and accurate distribution maps. - Names of species in 3 languages. The SmartSearch function allows you to select your current, or any other location and the species at that location will be filtered. Over and above the GPS location, you can search by shape, type, colours, size, habits, striking features and more. There are 100's of attributes you can choose from, which makes identifying a bird accurate and easy. As a first ever bird app achievement, the resulting species list is sorted by relevance with the most probable species matching your search criteria at the top, which makes it extremely quick and accurate. The ability to remove birds from the results is a game-changer. You can also log your sightings with trip descriptions, date, photos and notes, which are then indicated as pins on the distribution maps. Sightings lists can be viewed and can even be synced to a website and shared between devices. No internet connectivity is required to operate the app after it is installed which makes it possible to use the app in the most remote locations. All updates are regular and free.