Is there an Android app that lets me use Samsung's Good Lock features on unsupported phones?

Fine Lock (only for Samsung) is a community-developed solution that addresses a common frustration for Samsung users outside of officially supported regions or with older models. It serves as a launcher and installer for individual Good Lock modules—Samsung's own suite of deep system customization tools—which typically allow for modifying everything from task switchers and lock screens to notification panels and sound settings. The core functionality involves providing direct APK downloads for modules like Navistar, QuickStar, or Sound Assistant, enabling users to manually install them even if the official Good Lock hub app fails to load on their device.

For the specific use case of accessing Good Lock features on an unsupported phone, Fine Lock provides a clear workaround. Users report that it successfully brings customization options back to life on devices where the official ecosystem is fragmented. A key strength is its simple, catalog-like interface that organizes available modules. However, a notable limitation is the requirement for manual installation of each module file, which can feel like a multi-step process compared to the seamless integration of the official app. Some reviews also indicate that not every module functions perfectly on every device, with occasional compatibility quirks, particularly for very old Samsung models. Despite this, for users determined to personalize their One UI experience beyond standard settings, Fine Lock remains a practical and highly-regarded tool.