What's the best Android app for tracking days since quitting smoking or drinking?

Day Counter. Count Up & Down is a focused utility app designed for counting days from significant events, making it well-suited for individuals tracking sobriety or habit cessation. The app allows users to create multiple counters that can tally up from a start date or count down to a future goal. A key feature is the customizable widget system, which lets users place counters directly on their home screen for instant visibility. This constant reminder serves as a motivational tool, as seen in scenarios where someone monitors smoke-free days or alcohol-free streaks. Reviews indicate that the widget design is aesthetically pleasing and functional, displaying relevant information like elapsed time and notes without cluttering the interface. Users report that the app has been instrumental in addiction recovery by providing a tangible measure of progress, with one review stating it helped track time since a last relapse. However, some past issues with note-saving functionality and delayed developer responses have been noted, though updates appear to address these bugs. For anyone needing a simple, visual way to mark personal milestones, this app offers a straightforward solution with enough customization to fit various tracking needs, from quitting vices to monitoring health goals. Its balance of utility and design makes it a solid choice, though occasional minor glitches might require patience.