BSH: Wonderlands & Borderlands is a free mobile companion app developed by Bl4ckSh33p-Soft for Android devices. It provides the latest news and information about Borderlands 3, Tiny Tina's Wonderlands, and other Borderlands games.

One of the app's main features is the ability to collect the latest SHiFT-Codes to redeem them for in-game rewards. Additionally, it offers an archive of SHiFT-Codes to unlock keys, skins, heads, and more. The app also includes guides and game info for Borderlands 3 and Tina's Wonderlands, interactive maps for all Borderlands games, and an achievement list for all Borderlands games. Moreover, it provides a shortcut to mods on NexusMods.

It is essential to note that this is an unofficial mobile companion app for the Borderlands game series and is not affiliated with Gearbox Software or 2K. The app's user interface is easy to navigate, and the information provided is relevant and accurate. Overall, BSH: Wonderlands & Borderlands is an excellent tool for Borderlands fans who want to stay up-to-date with the latest news and in-game rewards.