WaterMind is a minimalist, privacy-first hydration tracker for Android. Log water in one tap with customizable cups, glasses, and bottles. Smart reminders only fire during your active hours—and stop once you hit your daily goal. Build streaks, unlock 14 badges, complete weekly challenges, and share your progress with beautiful cards. Includes a home screen widget, dark mode, weekly/monthly stats, and 5 languages (EN, FR, ES, DE, IT). Free forever. No ads. No account.