RenderDoc is a free MIT licensed stand-alone graphics debugger that allows quick and easy single-frame capture and detailed introspection of any application using Vulkan, D3D11, OpenGL & OpenGL ES or D3D12 across Windows 7 - 10, Linux, or Android.
Haven is for people who need a way to protect their personal spaces and possessions without compromising their own privacy, through an Android app and on-device sensors
FreeBrowser is a free Android browser with built in circumvention that lets you access any website that may be blocked in your location. Once the app has been downloaded, no configuration is required - you can start to access censored and blocked content immediately.