Brim — Water & Electrolytes

Brim is the hydration tracker that actually fits you. Instead of a generic "8 glasses a day," Brim builds a personalized daily water goal from your body, activity level, and climate — then helps you hit it with smart reminders and a beautiful wave-fill ring that rises as you drink. PERSONALIZED GOAL Answer a few quick questions and Brim calculates a science-based target tailored to your weight, sex, age, activity, and weather. See exactly why your goal is what it is, with a clear baseline + activity + climate breakdown. WATER + ELECTROLYTES Brim is more than water. Track sodium, potassium, and magnesium alongside your fluids, log electrolyte products, and keep every level in range. Each drink counts by its real hydration value — coffee and juice hydrate differently than water. SMART REMINDERS Gentle nudges keep you on pace through the day, with quiet hours so you're never buzzed at night. Choose smart, interval, or scheduled reminders and snooze when you need to. A DASHBOARD YOU'LL WANT TO OPEN The signature wave-fill ring shows your progress at a glance. Quick-add your usual glass or bottle in one tap, see your next nudge, and review today's log instantly. INSIGHTS & STREAKS Track daily averages, goal-hit days, current streaks, and electrolyte balance over time. Earn badges and spot the windows where you tend to fall behind. HOME-SCREEN WIDGET Log water without opening the app — the Brim widget shows your ring and +250 / +500 quick buttons right on your home screen. PRIVATE & FREE No account. No sign-up. All your data stays on your device. Brim is completely free to use. • Personalized, science-based daily goal • Water + sodium / potassium / magnesium tracking • Smart reminders with quiet hours • Beautiful animated wave-fill ring • Stats, streaks, badges & insights • Home-screen widget with quick-add • Light, dark & system themes • 100% on-device — private by design Stay hydrated, your way. Download Brim and feel the difference.