GPGIndustries software is often distributed through unofficial file-sharing sites, forum threads, or YouTube descriptions rather than a centralized, secure store.
The "GPG Android by GPGIndustries" tool is a specialized software utility used in the smartphone repair community primarily for flashing, unlocking, and repairing Android devices powered by specific chipsets like Allwinner and Rockchip. gpg-android-by-gpgindustries-tool
However, for day-to-day use on modern smartphones, you are much better off looking at modern, actively maintained alternatives like standard ADB/Fastboot commands, official manufacturer flashing tools (like Samsung Odin), or the open-source Android platform tools. rodion-gudz/Android-Tool - GitHub for day-to-day use on modern smartphones