ISS Exterior is an Android application developed by SoftLab-NSK and is available for free. This program falls under the category of Education & Reference, and it offers a 3D model of the International Space Station (ISS) that is used in the Gagarin's cosmonaut training center. This app allows users to rotate the station, observe it from up close or afar, and identify the central module through a simple touch.

The 3D model is based on the station configuration from October 2nd, 2015, and is highly detailed, allowing for an immersive experience. The app is easy to navigate and offers a unique perspective on the ISS, making it a great educational tool for those interested in space exploration. Overall, ISS Exterior is a well-designed and informative app that offers a fun and interactive way to learn about the International Space Station.