Posse is a web design agency that embraces open source technology for many good reasons. First of all, such tools do not come with any hefty fees that can drain a company's budget. When building applications for Android smartphones and tablets, this firm heavily relies on open source syntax such as Java, C and C++. These programming languages can be written smoothly in Android Studio, which is considered the official integrated development environment (IDE) for the Android platform. Talented developers can also take advantage of other software development kits (SDK) that are readily available on the web. Posse designs and manages apps for various versions of the Android operating system. For example, some publications are optimized to work on some of the platform's earliest editions such as Gingerbread and Ice Cream Sandwich. Of course, this web design firm also publishes apps that are refined specifically for the Lollipop, Marshmallow and Nougat versions.