PÜL App

PÜL is the world's most advanced hydration tracker — a mobile app that turns drinking water into a habit you actually keep. Built on behavioral science and tuned by AI, it learns your body and your day, then coaches you toward a goal that's right for you.

Highlights

• Goals that adapt to your day. The hydration model reads activity, temperature, alcohol, cycles, medications, and more — then quietly adjusts each day's target instead of nagging you with a fixed number.
• Real-time progress. A live daily-progress ring, on-track status, and in-the-moment nudges ("drink in 30m to stay on track"), synced instantly with the SmartCap.
• Your whole drink diary. 120+ drinks tracked for water, electrolytes, caffeine, alcohol, calories, and sugar — not just plain water.
• Your device, in your pocket. Battery, live feedback, and find-my-device for the SmartCap, all managed from the app.

Connected across your health stack

PÜL plugs into the tools people already wear and trust. It pulls in weather, activity, and body data to sharpen each day's target, pushes intake and nutrition back out, and opens its hydration data to partners.

• Two-way sync with Apple Health, Google Fit, and Fitbit.
• Terra API + partner API to bring wearable data in and share PÜL's hydration data with other platforms.
• Deeper insight as connected sources feed better recommendations, reporting, and compliance.

Teams, research & impact

Dashboards and leaderboards extend PÜL to teams, companies, trainers, and universities running hydration studies — with a web dashboard for per-bottle intake, drink logs, and exportable data. PÜL grew into a platform used by thousands, powered research at institutions like ASU, Kennesaw State, Glasgow, UNC Greensboro, and Kent State, and drew national press along the way.